[Federal Register: September 9, 2008 (Volume 73, Number 175)]
[Proposed Rules]
[Page 52557-52572]
[DOCID:fr09se08-24]

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Part V

Department of Transportation

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Pipeline and Hazardous Materials Safety Administration

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49 CFR Part 172

Hazardous Materials: Risk-Based Adjustment of Transportation Security
Plan Requirements; Proposed Rule

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DEPARTMENT OF TRANSPORTATION

Pipeline and Hazardous Materials Safety Administration

49 CFR Part 172

[Docket No. PHMSA-06-25885 (HM-232F)]
RIN 2137-AE22

Hazardous Materials: Risk-Based Adjustment of Transportation
Security Plan Requirements

AGENCY: Pipeline and Hazardous Materials Safety Administration (PHMSA),
DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: PHMSA, in consultation with the Transportation Safety
Administration (TSA) of the Department of Homeland Security (DHS), is
proposing to modify its current security plan requirements governing
the commercial transportation of hazardous materials by air, rail,
vessel, and highway. Based on an evaluation of the security threats
associated with specific types and quantities of hazardous materials,
the proposed rule would narrow the list of materials subject to
security plan requirements and reduce associated regulatory costs and
paperwork burden. The proposed rule also would clarify certain
requirements related to security planning, training, and documentation
and incorporate and build on recent international standards governing
hazardous materials security.

DATES: Submit comments by November 10, 2008.

ADDRESSES: You may submit comments identified by the docket number
(PHMSA-06-25885) by any of the following methods:
     Federal eRulemaking Portal: Go to http://
www.regulations.gov. Follow the online instructions for submitting
comments.
     Fax: 1-202-493-2251.
     Mail: Docket Operations, U.S. Department of
Transportation, West Building, Ground Floor, Room W12-140, Routing
Symbol M-30, 1200 New Jersey Avenue, SE., Washington, DC 20590.
     Hand Delivery: To Docket Operations, Room W12-140 on the
ground floor of the West Building, 1200 New Jersey Avenue, SE.,
Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday,
except Federal holidays.

For more detailed instruction on comment submission, see the
SUPPLEMENTARY INFORMATION section.

FOR FURTHER INFORMATION CONTACT: Susan Gorsky or Ben Supko, Office of
Hazardous Materials Standards, Pipeline and Hazardous Materials Safety
Administration,<PHONE_NUMBER>.

SUPPLEMENTARY INFORMATION:

Comment Submission

    Instructions: Identify the agency and docket number (PHMSA-06-
25885) at the beginning of your submission. Except for comments that
receive confidential treatment, all comments received will be posted
without change to the Federal Docket Management System (FDMS),
including any personal information provided. Detailed instructions for
requesting confidential treatment are provided below, under the Privacy
Act heading.
    Docket: For access to the dockets to read background documents or
comments received, go to http://www.regulations.gov or DOT's Docket
Operations Office (see ADDRESSES).
    Privacy Act: Anyone is able to search the electronic form of any
written communications and comments received into any of our dockets by
the name of the individual submitting the document (or signing the
document, if submitted on behalf of an association, business, labor
union, etc.). You may review DOT's complete Privacy Act Statement in
the Federal Register published on April 11, 2000 (Volume 65, Number 70;
Pages 19477-78), which may also be found at http://www.regulations.gov.
    You may request confidential treatment of comments or portions of
comments under the procedures set forth in 49 CFR part 105. While all
comments should be sent to the FDMS, PHMSA will consider separately and
not place in the public docket those comments or portions of comments
PHMSA determines to include trade secrets, other confidential
commercial information, or sensitive security information (SSI). In
accordance with 49 CFR 105.30, you may ask PHMSA to keep information
confidential using the following procedures: (1) Mark ``confidential''
on each page of the original document you would like to keep
confidential; (2) send FDMS both the original document and a second
copy of the original document with the confidential information
redacted; and (3) explain why the information is confidential (as a
trade secret, other confidential commercial information, or SSI). In
your explanation, you should provide enough information to enable PHMSA
to determine whether the information provided is protected by law and
must be handled separately.
    In addition, for comments or portions of comments that you believe
contain SSI as defined in 49 CFR 15.7, you should comply with Federal
regulations governing the handling of SSI. See 49 CFR 1520.9 and 49 CFR
15.9, Restrictions on the disclosure of sensitive security information.
Those regulations restrict the disclosure of SSI to those with a need
to know and set forth specific requirements for marking, packaging, and
disposing of documents containing SSI. Note when mailing in or using a
special delivery service to send comments containing SSI, comments
should be wrapped in a manner to prevent the information from being
read. PHMSA may perform concurrent reviews on requests for designations
as SSI.
    After reviewing your request for confidentiality and the
information provided, PHMSA will determine whether the information
should be treated as confidential under applicable laws and
regulations. PHMSA will notify you of the decision to grant or deny
confidential treatment. If PHMSA denies your request, you will be
provided an opportunity to request reconsideration before the
information is publicly disclosed. PHMSA will reconsider its decision
to deny confidentiality based on your response.
    To further guard against disclosure of SSI, PHMSA will review all
submissions, whether or not they are identified as confidential, prior
to their posting on the public docket. PHMSA will notify you if we
determine that information in your submission should not be disclosed
to the public. If you have any questions concerning the procedures for
determining confidentiality or security sensitivity, you may call one
of the individuals listed below.

I. Background

A. Current DOT Security Requirements

    The Hazardous Materials Regulations (HMR; 49 CFR parts 171-180)
require persons who offer for transportation or transport certain
hazardous materials in commerce to develop and implement security
plans. The security plan requirements in subpart I of part 172 of the
HMR apply to persons who offer for transportation or transport:
    (1) A highway-route controlled quantity of a Class 7 (radioactive)
material;
    (2) More than 25 kg (55 lbs.) of a Division 1.1, 1.2, or 1.3
(explosive) material;
    (3) More than 1 L (1.06 qt.) per package of a material poisonous by
inhalation in Hazard Zone A;

    (4) A shipment in a bulk packaging with a capacity equal to or
greater than13,248 L (3,500 gallons) for liquids or gases or greater
than 13.24 cubic meters (468 cubic feet) for solids;
    (5) A shipment in other than a bulk packaging of 2,268 kg (5,000
lbs.) gross weight or more of one class of hazardous materials for
which placarding is required;
    (6) A select agent or toxin regulated by the Centers for Disease
Control and Prevention under 42 CFR part 73 or a select agent or toxin
regulated by the U.S. Department of Agriculture under 9 CFR part 121;
or
    (7) A shipment that requires placarding under subpart F of part 172
of the HMR.
    A security plan must include an assessment of possible
transportation security risks and appropriate measures to address the
assessed risks. Specific measures implemented as part of the plan may
vary with the level of threat at a particular time. At a minimum, the
security plan must address personnel security, unauthorized access, and
en route security. For personnel security, the plan must include
measures to confirm information provided by job applicants for
positions involving access to and handling of the hazardous materials
covered by the plan. For unauthorized access, the plan must include
measures to address the risk of unauthorized persons gaining access to
materials or transport conveyances being prepared for transportation.
For en route security, the plan must include measures to address
security risks during transportation, including the security of
shipments stored temporarily en route to their destinations.
    As indicated above, the HMR set forth general requirements for a
security plan's components rather than a prescriptive list of specific
items that must be included. The HMR set a performance standard
providing offerors and carriers with the flexibility necessary to
develop security plans addressing their individual circumstances and
operational environments. Accordingly, each security plan will differ
because it will be based on an offeror's or a carrier's individualized
assessment of the security risks associated with the specific hazardous
materials it ships or transports and its unique circumstances and
operational environment.

B. International Transportation Security Standards

    The United Nations Model Regulations on the Transport of Dangerous
Goods (UN Recommendations) identify high consequence dangerous goods
for which enhanced security measures are recommended. The recommended
security measures include security plans and are similar to the
requirements in subpart I of part 172 of the HMR. The UN
Recommendations define high consequence dangerous goods as materials
with the ``potential for mis-use in a terrorist incident and which may,
as a result, produce serious consequences such as mass casualties or
mass destruction.'' The UN Recommendations list the following materials
as high consequence dangerous goods:
    (1) Division 1.1 explosives;
    (2) Division 1.2 explosives;
    (3) Division 1.3 compatibility group C explosives;
    (4) Division 1.5 explosives;
    (5) Bulk shipments of Division 2.1 flammable gases;
    (6) Division 2.3 toxic gases (excluding aerosols);
    (7) Bulk shipments of Class 3 flammable liquids in PG I or II;
    (8) Class 3 and Division 4.1 desensitized explosives;
    (9) Bulk shipments of Division 4.2 PG I materials;
    (10) Bulk shipments of Division 4.3 PG I materials;
    (11) Bulk shipments of Division 5.1 PG I oxidizing liquids;
    (12) Bulk shipments of Division 5.1 perchlorates, ammonium nitrate
and ammonium nitrate fertilizers;
    (13) Division 6.1 PG I toxic materials;
    (14) Division 6.2 infectious substances of Category A (UN2814 and
2900);
    (15) Class 7 radioactive materials in quantities greater than 3000
A1 (special form) or 3000 A2, as applicable, in
Type B(U) or Type B(M) or Type (C) packages; and
    (16) Bulk shipments of Class 8 PG I materials.

For purposes of the security provisions, the UN defines ``in bulk'' to
mean quantities greater than 3,000 kg (6,614 lbs.) or 3,000 liters (793
gallons) in portable tanks or bulk containers.

C. Petitions for Rulemaking

    PHMSA has received two petitions for rulemaking requesting a review
and reevaluation of the current HMR security plan requirements. The
Council on Safe Transportation of Hazardous Articles (COSTHA)
petitioned PHMSA (P-1447) to reevaluate the security requirements in
subpart I of part 172 of the HMR to ``enhance international
harmonization and to better utilize available resources in enhancing
hazardous materials transportation security.'' COSTHA notes that the
list of hazardous materials subject to the security plan requirements
differs from the list of high consequence dangerous goods in the UN
Recommendations. COSTHA requests that PHMSA adopt the same criteria as
the UN Recommendations for materials that are subject to the security
plan requirements or, as an alternative, eliminate the security plan
requirement for quantities of hazardous materials currently subject to
placarding under subpart F of part 172. COSTHA cites several examples
of hazardous materials (e.g., automobile batteries, inks, paint,
flavoring extracts) that, based on hazard class and quantity are
placarded and subject the security plan requirements under the HMR, but
not covered by the list of high consequence dangerous goods in the UN
Recommendations. COSTHA acknowledges that these materials pose certain
risks in transportation, but contends it is highly unlikely a terrorist
would use these materials to perpetrate a terrorist attack.
    Similarly, the American Trucking Associations (ATA) petitioned
PHMSA (P-1466) to designate a subset of ``security sensitive hazardous
materials'' that would trigger security plan requirements. The ATA
urges PHMSA to use the list of materials and quantities subject to the
Federal Motor Carrier Safety Administration (FMCSA) Hazardous Materials
Safety Permit requirements as the starting point for determining
security sensitive hazardous materials. In 49 CFR part 385, FMCSA
requires a safety permit for motor carriers transporting specified
quantities of Class 7 (radioactive) materials; Class 1 materials
(explosives); materials that are poisonous or toxic by inhalation (PIH
or TIH materials); and compressed or refrigerated liquefied methane or
liquefied natural gas. In addition to those materials, ATA suggests
that PHMSA add the following materials from the UN high consequence
dangerous goods list: (1) Bulk shipments of Division 2.1; (2) bulk
shipments of Class 3, PG I and II; (3) Class 3 and Division 4.1
desensitized explosives (quantity to be determined); (4) bulk shipments
of Division 4.2, PG I; (5) bulk shipments of Division 4.3, PG I; (6)
bulk shipments of Division 5.1, PG I; (7) bulk shipments of Division
5.1 perchlorates, ammonium nitrate and ammonium nitrate fertilizers;
(8) Division 6.2 infectious substances of Category A (quantity to be
determined); (9) any quantity of select agents; and (10) bulk shipments
of Class 8, PG I. The ATA uses quantities greater than 3,500 gallons or
5,000 pounds to define ``bulk'' for purposes of security planning.

    We agree with COSTHA and ATA that the list of materials for which a
security plan is required should be reevaluated. Our existing security
plan rules were developed as baseline requirements. We considered the
company preparing the security plan to be in the best position to
assess security risks based on its operational circumstances. If
security risks were determined to be insignificant, this would be
reflected in a simple security plan with minimal content. Increased
coverage would be required when security risks are more substantial.
The security plan requirements went into effect more than four years
ago, on September 25, 2003. Since then, both the industry and the
government have gained experience evaluating security risks associated
with specific hazardous materials and transportation environments and
identifying appropriate measures to address those risks. Accordingly,
we initiated this rulemaking, in coordination with other DOT modal
administrations (the Federal Aviation Administration (FAA), Federal
Railroad Administration (FRA), and FMCSA), and TSA to consider
modifications to the list of hazardous materials for which security
plans are required.

II. Advance Notice of Proposed Rulemaking

    On September 21, 2006, PHMSA published an advance notice of
proposed rulemaking (ANPRM) seeking public comment on the current
security plan requirements. Commenters were asked to address the list
of materials posing a security threat sufficient to justify preparation
and implementation of a security plan, including factors that should be
considered in assessing security risks; quantity thresholds that would
trigger the security plan requirement; packing group criteria; and the
availability of hazardous materials outside of transportation.
    On November 30, 2006, PHMSA hosted a public meeting to discuss
these issues and invite further comments and information concerning the
types and quantities of materials that should be covered by the
security plan rule. Six persons made presentations at the public
meeting. A transcript of the meeting, with the statements of
presenters, is available for review in the public docket for this
rulemaking.
    Written comments were received from 34 industry associations,
offerors, carriers, and private citizens, identified in the following
list.

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                ID/name/company                      Date                          Docket No.
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1 Clare L. Welker.............................      09/28/2006  PHMSA-2006-25885-2
2 Gregory Sutherland..........................      10/03/2006  PHMSA-2006-25885-3
3 Clare L. Welker.............................      10/19/2006  PHMSA-2006-25885-4
4 Duplainville Transport......................      10/25/2006  PHMSA-2006-25885-5
5 Ecolab......................................      11/22/2006  PHMSA-2006-25885-6
6 Arthur E. Hall..............................      11/21/2006  PHMSA-2006-25885-7
7 Institute of Makers of Explosives (IME).....      11/30/2006  PHMSA-2006-25885-8
8 Thomas Jefferson National Accelerator             12/13/2006  PHMSA-2006-25885-9
 Facility (Jefferson Lab).
9 U.S. Department of Energy (DOE).............      12/18/2006  PHMSA-2006-25885-10
10 Thomas L. Dunaway..........................      12/18/2006  PHMSA-2006-25885-11
11 National Refrigerants, Inc. (NRI)..........      12/19/2006  PHMSA-2006-25885-13
12 United States Nuclear Regulatory Commission      12/19/2006  PHMSA-2006-25885-14
 (NRC).
13 Veolia ES Technical Solutions, L.L.C.            12/19/2006  PHMSA-2006-25885-15
 (Veolia).
14 Council on Radionuclides and                     12/19/2006  PHMSA-2006-25885-16
 Radiopharmaceuticals, Inc. (CORAR).
15 Flavor and Extract Manufacturers                 12/20/2006  PHMSA-2006-25885-17
 Association (FEMA).
16 Fragrance Materials Association (FMA)......      12/20/2006  PHMSA-2006-25885-18
17 The Dow Chemical Company (Dow).............      12/20/2006  PHMSA-2006-25885-19
18 Laboratory Corporation of America Holdings.      12/19/2006  PHMSA-2006-25885-20
19 American Trucking Associations, Inc (ATA)..      12/20/2006  PHMSA-2006-25885-21
20 Dangerous Goods Transport Consulting, Inc..      12/20/2006  PHMSA-2006-25885-22
21 Air-Conditioning and Refrigeration               12/20/2006  PHMSA-2006-25885-23
 Institute (ARI).
22 Total Petrochemicals USA, Inc..............      12/20/2006  PHMSA-2006-25885-24
23 American Beverage Association (ABA)........      12/19/2006  PHMSA-2006-25885-25
24 Reusable Industrial Packaging Association        12/20/2006  PHMSA-2006-25885-26
 (RIPA).
25 Utility Solid Waste Activities Group             12/20/2006  PHMSA-2006-25885-27
 (USWAG).
26 Association of Hazmat Shippers, Inc. (AHS).      12/21/2006  PHMSA-2006-25885-28
27 National Paint & Coatings Association, Inc.      12/20/2006  PHMSA-2006-25885-29
 (NPCA).
28 National Propane Gas Association (NPGA)....      12/21/2006  PHMSA-2006-25885-30
29 Dangerous Goods Advisory Council (DGAC)....      12/21/2006  PHMSA-2006-25885-31
30 Council on Safe Transportation of Hazardous      12/22/2006  PHMSA-2006-25885-32
 Articles, Inc. (COSTHA).
31 National Tank Truck Carriers, Inc. (NTTC)..      12/27/2006  PHMSA-2006-25885-33
32 Battery Council International (BCI)........      01/12/2007  PHMSA-2006-25885-34
33 Nuclear Energy Institute (NEI).............      01/12/2007  PHMSA-2006-25885-35
34 Bill Bradshaw--Comments....................      05/17/2007  PHMSA-2006-25885-36
----------------------------------------------------------------------------------------------------------------

    The full text of their comments are available for review through
the Federal eRulemaking Portal (http://www.regulations.gov).
    Most commenters agree that the list of materials for which security
plans are required should be revised to include only those materials
that pose a significant security threat in transportation. In the words
of one commenter, ``[R]egulating hazardous materials transportation
security at the placarded load level is inconsistent with a risk-based
approach. Using placards as a trigger for hazardous materials security
regulations results in the overregulation of materials that are not
capable of being used as a terrorist weapon.'' (ATA) Several commenters
suggest that our rule should address two types of threats from the
misuse of hazardous materials. As one put it: ``First, there are
commercial shipments of materials that, based on the hazard and
quantity in the package would, if attacked in transportation and
catastrophically released, enhance the damage or destruction of the
attack. * * * Second, there are other materials whose value to a
terrorist is in the theft

or diversion of the material for manipulation into weapons of mass
destruction (WMD).'' (IME) Similarly, ``Risk should be assessed
considering the nature of the threat, the vulnerability of the target,
and the potential consequences of an incident. Threat scenarios should
consider the potential for a serious catastrophic release from a direct
attack, the potential for tampering and subsequent downstream impact,
and the potential for theft and misuse as a weapon of mass
destruction.'' (Dow)
    Commenters also agree that, in developing this list, PHMSA should
consider the potential for a material to be used for a criminal or
terrorist act and the consequences of such an action, based on the
hazard class and packing group of the material and the quantity or
volume transported. Commenters generally oppose a material-specific
list of chemicals and other materials that pose a security risk. ``We
urge PHMSA to reject [security sensitive hazardous materials] lists
that are material-by-material based and to continue to embrace one
based on a hazard class approach. * * * Among other advantages, a
hazard class approach can be internationally harmonized and it
addresses issues created by mixtures and solutions that have plagued
material-by-material lists in other regulatory venues.'' (IME)
    Most commenters suggest that security plan requirements should
apply to the list of hazardous materials identified in the UN
Recommendations as ``high consequence dangerous goods.'' ``[W]e believe
the current Security Plan requirements should be harmonized with the UN
Recommendations so that they focus on the types of hazards and volumes
that pose a real threat of weaponization.'' (Flavor and Extract
Manufacturers Association) Also, ``[t]he UN recommendation to require
security plans for 'High Consequence Dangerous Goods' appears to be a
reasonable approach, which considers hazard, form of packaging and
volume thresholds.'' (Dow) As well, ``the UN Recommendations
individually define `significant risk' materials and quantities based
on the actual risk factors * * * rather than general transport
classifications. Importantly, material identification is accomplished
through a stakeholder developed `list of high consequence dangerous
goods' ensuring that material is independently peer reviewed before it
is assigned a risk level.'' (Air-Conditioning and Refrigeration
Institute).

III. Proposed Modifications to Security Plan Criteria

A. Summary of Proposal

    Based on the comments received on the ANRPM and an evaluation of
possible security threats posed by specific types and classes of
hazardous materials, PHMSA is proposing to modify the list of materials
for which a security plan is required. PHMSA agrees with the commenters
to the ANPRM that the UN list of high consequence dangerous goods
includes most of the hazardous materials that pose a significant
transportation security risk. The UN list of high consequence dangerous
goods was used as the starting point for our deliberations for this
NPRM.
    PHMSA worked closely with FRA, FMCSA, and TSA to assess the
transportation security risks associated with the different classes and
quantities of hazardous materials. To determine the types of materials
that should be subject to security planning requirements, PHMSA
evaluated specific transportation scenarios in which a terrorist could
deliberately use hazardous materials to cause large-scale casualties
and property damage. In our qualitative risk evaluation, we considered
the following factors: (1) Physical and chemical properties of the
material or class of materials and how those properties could
contribute to a security incident; (2) quantities shipped and mode of
transport; (3) past terrorist use; (4) potential use; and (5)
availability. One of the most significant security vulnerabilities
involves the potential for a perpetrator to take control of a
conveyance containing a high-risk material and move it to a site where
the material could cause maximum damage or provide unusual leverage.
For some hazardous materials, the primary security threat involves
theft or highjacking of raw materials for use in weapons of mass
destruction.
    On the basis of these considerations, PHMSA proposes to modify the
current list of materials covered by the security plan requirement, as
summarized in the following table:

 Proposed Revisions to the List of Hazardous Materials for Which Transportation Security Plans Will Be Required
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       Class               Current threshold              Proposed threshold                   Change
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1.1................  Any quantity.................  Any quantity.................  None.
1.2................  Any quantity.................  Any quantity.................  None.
1.3................  Any quantity.................  Any quantity.................  None.
1.4................  A quantity requiring           Any quantity of UN 0104,       Security plan required only
                      placarding.                    0237, 0255, 0267, 0289,        for detonators and shaped
                                                     0361, 0365, 0366, 0440,        charges.
                                                     0441, 0455, 0456, 0500.
1.5................  A quantity requiring           Any quantity.................  Security plan required for
                      placarding.                                                   all shipments.
1.6................  A quantity requiring           Not subject..................  Security plan not required
                      placarding.                                                   for any Division 1.6
                                                                                shipments.
2.1................  A quantity requiring           3,000 L in a single packaging  Security plan not required
                      placarding.                                                   for less than 3,000 L.
2.2................  A quantity requiring           Not subject except for oxygen  Security plan not required
                      placarding.                    and gases with a subsidiary    for most non-flammable, non-
                                                     5.1 hazard (3,000 L in a       poisonous compressed gas
                                                     single packaging).             shipments.
2.3................  Any quantity.................  Any quantity.................  None.
3..................  A quantity requiring           3,000 L in a single packaging  Security plan not required
                      placarding.                    and any quantity of Class 3    for less than 3,000 L except
                                                     desensitized explosives.       for desensitized explosives.
4.1................  A quantity requiring           Any quantity desensitized      Security plan not required
                      placarding.                    explosives.                    except for desensitized
                                                                                explosives.
4.2................  A quantity requiring           PG I and II only in            Security plan not required
                      placarding.                    quantities of 3,000 kg or      for PG III materials.
                                                     more in a single packaging.
4.3................  Any quantity.................  Any quantity.................  None.

5.1................  A quantity requiring           PG I and II liquids,           Security plan not required
                      placarding.                    perchlorates, ammonium         for PG III liquids or
                                                     nitrate (including             unlisted solids.
                                                     fertilizers) in quantities
                                                     of 3,000 L or more in a
                                                     single packaging.
5.2................  Any quantity of Organic        Any quantity of Organic        None.
                      peroxide, Type B, liquid or    peroxide, Type B, liquid or
                      solid, temperature             solid, temperature
                      controlled.                    controlled.
6.1................  A quantity requiring           Any quantity of PG I; 3,000 L  Security plan not required
                      placarding; any quantity of    for PG II and III.             for less than 3,000 L of PG
                      PIH material.                                                 II and III.
6.2................  Select agents................  Select agents................  None.
7..................  Shipments requiring Yellow     For radionuclides covered by   Security plan only required
                      III label; highway route       the IAEA Code of Conduct,      for Class 7 materials that
                      controlled quantity.           Category 1 and Category 2      pose transportation security
                                                     sources per package; for all   risk.
                                                     other radionuclides, 3000 A2
                                                     per package.
8..................  A quantity requiring           PG I only in quantities of     Security plan not required
                      placarding.                    3,000 L or more in a single    for PG II and III materials.
                                                     packaging.
9..................  Capacity >3,500 gallons for    Not subject..................  Security plan not required
                      liquid/gas; volumetric                                        for Class 9 materials.
                      capacity >468 cubic feet for
                      solids.
----------------------------------------------------------------------------------------------------------------

    Our proposed revisions are explained in detail in the following
section.

B. System Characteristics and Risks

    A number of characteristics of the hazardous materials
transportation system create the potential for misuse: (1) Substantial
quantities of inherently dangerous materials are transported; (2) these
materials are already mobile; (3) these materials are frequently
transported in proximity to densely populated areas; and (4) placards
or other markings required for safety may communicate hazard
information to those who would misuse it.
    Following are the hazards of greatest concern from a transportation
security perspective:
    Explosion and fire. Hazardous materials that pose a risk of
explosion or fire may be used to attack large groups of people and
critical infrastructure, such as buildings, tunnels, bridges, subways,
communication centers, and electrical power grids.
    Poison Inhalation Hazards (PIH). PIH materials, either as gases or
volatile liquids, can be used to attack people in confined spaces such
as buildings or subways. Bulk quantities present dangers to large areas
and could affect a significant number of people in urban areas.
    Poison liquids or solids. Poisons can be used to attack food or
drinking water supplies or to attack groups of people indoors or
outdoors.
    Infectious substances. Depending on the mode of transmission for a
given material, infectious substances can be used to contaminate food
or water supplies or to expose large numbers of people to disease. The
suspected or possible presence of these materials can result in long-
term denial of the use of space, facilities, or goods.
    Radioactive materials. These materials can cause severe chronic
effects on large numbers of people, depending on exposure levels and
the time exposed. The suspected or possible presence of these materials
can result in long-term denial of the use of space, facilities, or
goods.
    Other materials of concern. Certain hazardous materials can be
mixed to create explosions, intensified burning, and toxic effects or
used as precursor chemicals in the manufacture of more dangerous
substances. For example, mixing poisonous materials with acidic
material can generate toxic gases (e.g., sodium cyanide mixed with
hydrochloric acid will generate hydrogen cyanide gas).

C. Security Risks for Specific Classes of Materials

    A detailed discussion of the transportation security risks posed by
specific classes of hazardous materials follows.
1. Division 1.1, 1.2, and 1.3 Explosives
    Division 1.1., 1.2, and 1.3 explosive materials (e.g. , certain
types of ammunition and cartridges, black powder, gun powder,
demolition devices, depth charges, certain types of detonators, certain
types of fireworks, rockets, and warheads) pose significant safety and
security risks in transportation. A Division 1.1 explosive is one that
presents a mass explosive hazard. A mass explosion is one that affects
almost the entire load simultaneously. An explosion of Division 1.1
materials creates a pressure pulse that moves faster than the speed of
sound. A Division 1.2 explosive has a projection hazard, which means
that if the material explodes, it will project fragments outward at
some distance. A Division 1.3 explosive presents a fire hazard and
either a minor blast hazard or a minor projection hazard or both. If
compromised in transit by detonation or as a secondary explosion to an
improvised explosive device (IED), these materials could result in
significant numbers of fatalities and substantial damage to
transportation infrastructure and the surrounding area. When available,
these explosives have been the preferred weapon of terrorists. This
trend is not expected to change.
    Significant quantities of Division 1.1, 1.2, and 1.3 explosives are
transported by highway and rail for both commercial and military
applications. The Department of Defense alone moves approximately
30,000 shipments a year by motor carrier. Motor carrier shipments are
transported largely on the nation's interstate highway system, which
bisects or adjoins many metropolitan areas offering significant iconic-
value and critical infrastructure targets. About 500 carloads of these
explosives are transported by rail each year. Like the interstate
highway system, the rail transportation network intersects many densely
populated areas.
    The HMR currently require security plans for shipments of any
quantity of Division 1.1, 1.2, or 1.3 explosives. PHMSA believes that
this requirement provides an appropriate level of security, given the
potential

vulnerabilities and risks associated with these materials and thus
proposes to retain this requirement in the NPRM.
2. Division 1.4 Explosives
    Division 1.4 explosives are those that present a minor explosive
hazard. The explosive effects are largely confined to the package, with
no projection of fragments of appreciable size or range. This category
of explosives includes detonators used to detonate the Division 1.1,
1.2, and 1.2 explosives described above. Detonators are part of all
IEDs. Over 500,000 tons of Division 1.4 explosives are transported by
rail and highway in the United States every year.
    Currently, the HMR require security plans for placarded amounts of
Division 1.4 explosives. Our evaluation suggests that most Division 1.4
explosives do not pose a significant transportation security risk.
However, Division 1.4 detonators are an attractive target for theft and
use as initiating devices for IEDs. Therefore, in this NPRM, PHMSA
proposes to require security plans only for shipments of any quantity
of the following types of Division 1.4 explosives (listed by proper
shipping name and UN identification number) because they are difficult
to produce, are key components to IEDs, and can be used as initiators
for other explosives:
    (1) Detonator assemblies, non electric for blasting (UN 0361, UN
0500)
    (2) Detonators for ammunition (UN 0365, UN 0366)
    (3) Detonators, electric, for blasting (UN 0255, UN 0456)
    (4) Detonators, non-electric, for blasting (UN 0267, UN 0455)
    (5) Cord, detonating, flexible (UN 0289)
    (6) Cord, detonating, mild effect, metal clad (UN 0104)
    (7) Charges, shaped, flexible, linear (UN 0237)
    (8) Charges, shaped, without detonator (UN 0440, UN 0441)
3. Division 1.5 Explosives
    Division 1.5 explosives are very insensitive explosives. This
division covers substances that have a mass explosion hazard but are so
insensitive that they pose very little probability of initiation or of
transition from burning to detonation under normal conditions of
transport. In practice, Division 1.5 explosives are activated using a
higher-energy explosive charge. Roughly 4.3 million tons of Division
1.5 explosives are transported by rail and highway in the United States
every year.
    Division 1.5 explosives could be used in attacks on people or
infrastructure. While these explosives are insensitive to effects from
normal transportation accident conditions, such as fire or violent
shock, Division 1.5 explosives can be made to detonate if initiated by
an explosive charge. The detonation effects, while less severe than
those of Division 1.1, 1.2, and 1.3 explosives, are substantial. An
example of a Division 1.5 explosive is ammonium nitrate-fuel oil
mixture (ANFO) that, with a properly designed explosive chain, can
produce a substantial blast wave. Insensitive bulk blasting agents like
ANFO have been used by terrorists in the past, most notably in the
attack on the Murrah Federal Building in Oklahoma City.
    Currently, the HMR require security plans for placarded shipments
of Division 1.5 explosives. In this NPRM, PHMSA proposes to require
security plans for shipments of Division 1.5 explosives transported in
any quantity.
4. Division 1.6 Explosives
    Division 1.6 explosives are extremely insensitive articles that do
not have a mass explosion hazard and that contain only extremely
insensitive detonating substances with only a negligible probability of
accidental initiation or propagation. Currently, the HMR require
security plans for shipments of placarded amounts of Division 1.6
materials. However, our evaluation concludes that these materials do
not pose a transportation security risk. Therefore, in this NPRM, PHMSA
proposes to delete Division 1.6 explosives from the list of materials
for which security plans are required.
5. Division 2.1 Flammable Gases
    Division 2.1 materials are flammable gases that may be transported
at ambient pressure in a compressed or liquefied compressed state.
Flammable gases will burn if mixed with an appropriate amount of air;
confined burning of a flammable gas can lead to detonation. A commonly
transported example of a flammable gas is propane, a liquefied
compressed gas. When liquid propane is released into the atmosphere, it
quickly vaporizes into the gaseous form that is its normal state at
atmospheric pressure. This happens very rapidly, and in the process,
the propane combines readily with air to form fuel-air mixtures that
are ignitable over a range of 2.2 to 9.5 percent propane by volume. If
an ignition source is present in the vicinity of a highly flammable
mixture, the vapor cloud ignites and burns very rapidly (characterized
by some experts as ``explosively'').
    Over 120 million tons of flammable gas are used and distributed in
the United States on an annual basis. A significant portion is
transported by pipeline; however, more than 200,000 carloads of these
materials are transported by rail, and over 40 million tons are
transported by highway each year. These materials generally are
consumer products and can be purchased without special licenses or
security procedures.
    Based on their hazard characteristics and the frequency with which
propane and other Division 2.1 materials are transported in this
country, PHMSA believes that materials meeting the definition for
classification as Division 2.1 materials present a sufficient security
risk to warrant the imposition of security plan requirements.
Terrorists overseas have used flammable gas in attacks on people and
buildings, using an IED to detonate the gas. The resulting disbursement
and ignition of the gas creates a significantly larger fireball and
heat signature than typical of an explosive detonation.
    The HMR currently require security plans for shipments of Division
2.1 materials in amounts that require placarding--that is, amounts
greater than 119 gallons in a single packaging or container. In
evaluating specific security risks associated with shipments of
Division 2.1 materials, PHMSA has concluded that shipments in
quantities less than 3,000 L in a single package do not pose a
transportation security threat warranting development and
implementation of security plans. As discussed above, the major
security threat associated with these materials is their potential use
to attack large groups of people and critical infrastructure; a
substantial quantity is necessary to achieve a significant effect.
Therefore, this NPRM proposes to require security plans for shipments
of Division 2.1 materials in amounts greater than or equal to 3,000 L
in a single package or container. Security plans would not be required
for shipments of Division 2.1 materials in lesser quantities.
6. Division 2.2 Compressed Gases
    Division 2.2 compressed gases are those that are neither flammable
nor poisonous. Division 2.2 compressed gases are regulated for
transportation safety purposes because they pose a physical hazard due
to the increased pressure under which the material is maintained. In
addition, Division 2.2 compressed gases will displace oxygen if
released in a confined space. Without oxygen, people very quickly lose
consciousness and will die within three or four minutes.
    Currently, the HMR require shippers and carriers of Division 2.2
gases in amounts that require placarding to develop and implement
security plans.

However, the hazard characteristics of these materials do not lend
themselves to terrorist or criminal use. Therefore, PHMSA has concluded
that Division 2.2 compressed gases generally do not pose a security
threat sufficient to warrant specific security planning measures.
However, we are proposing to require security plans for oxygen and for
other Division 2.2 gases that are oxidizers. In addition to being a
Division 2.2 material, oxygen and other oxidizers enhance the
combustion of other materials. Oxygen and similar oxidizers will
increase the likelihood and intensity of a fire or other chemical
reaction. At least 7 million tons of oxygen are transported by motor
carriers each year. Because of its oxidizing characteristics and the
volume transported, large shipments of oxygen should be subject to
security planning requirements. Therefore, this NPRM proposes to
require shippers and carriers of oxygen in quantities greater than or
equal to 3,000 L in a single package or container to develop and
implement security plans. In addition, we are proposing to require
security plans for shipments of any Division 2.2 compressed gases with
a subsidiary hazard of Division 5.1 oxidizer when transported in
quantities of at least 3,000 L in a single package or container. A list
of such materials is provided below.

----------------------------------------------------------------------------------------------------------------
                                                                               Identification
                   Proper shipping name                       Hazard class          Nos.           Label code
----------------------------------------------------------------------------------------------------------------
Air, refrigerated liquid, (cryogenic liquid)..............               2.2            UN1003          2.2, 5.1
Air, refrigerated liquid, (cryogenic liquid) non-                        2.2            UN1003          2.2, 5.1
 pressurized..............................................
Carbon dioxide and oxygen mixtures, compressed............               2.2            UN1014          2.2, 5.1
Compressed gas, oxidizing, n.o.s..........................               2.2            UN3156          2.2, 5.1
Gas, refrigerated liquid, oxidizing, n.o.s. (cryogenic                   2.2            UN3311          2.2, 5.1
 liquid)..................................................
Liquefied gas, oxidizing, n.o.s...........................               2.2            UN3157          2.2, 5.1
Nitrous oxide.............................................               2.2            UN1070          2.2, 5.1
Nitrous oxide, refrigerated liquid........................               2.2            UN2201          2.2, 5.1
----------------------------------------------------------------------------------------------------------------

7. Division 2.3 and Division 6.1 PIH Materials
    Poison inhalation hazard (PIH) materials are gaseous or liquid
materials that are known or presumed on the basis of tests to be toxic
to humans and to pose a hazard to health in the event of a release
during transportation. PIH materials form a toxic plume upon release
into the atmosphere. Dispersion of these vapors can endanger
significant numbers of people. Examples of PIH materials include
phosgene, chlorine, hydrogen fluoride, and anhydrous ammonia. Each year
about 100,000 carloads of PIH materials are shipped by rail, and over 8
million tons of PIH materials are transported by highway. Because of
their safety risks, PIH materials are among the most stringently
regulated of all hazardous materials.
    The most infamous example of the safety risks posed by PIH
materials is the 1984 accident in Bhopal, India, in which approximately
10,000 gallons of methyl isocyanate was released from a chemical plant,
causing nearly 3,000 deaths and more than 15,000 injuries. A PIH
material (sarin) was released by terrorists in a Tokyo subway in 1995,
resulting in 12 fatalities and hundreds of injuries. More recently, on
January 6, 2005, in Graniteville, South Carolina, a 42-car freight
train, carrying several tank cars of chlorine, collided with a standing
train. The accident resulted in the puncture of one tank car and the
release of a cloud of chlorine gas that killed nine people. In
addition, terrorists in Iraq have employed tank trucks loaded with
chlorine in several attacks.
    The transportation security risks of these materials have been
amply demonstrated. The HMR currently require security plans for
shipments of PIH materials in any quantity. We believe this requirement
provides an appropriate level of security, given the potential
vulnerabilities and risks associated with these materials. We are not
proposing any changes to this requirement in this NPRM.
8. Class 3 Flammable Liquids
    Flammable liquids burn vigorously, giving off large quantities of
intense heat. Some may produce flammable atmospheres in confined spaces
that, when ignited, could cause significant damage through deflagration
or detonation. At least 37 million shipments of flammable liquids are
moved in commerce in the United States every year, including upwards of
24 million shipments of gasoline from bulk storage facilities through
the distribution chain.
    Class 3 materials could be used in a terrorist attack to trigger a
large, intense fire that could cause deaths, injuries, and damage to
buildings and infrastructure. To be effective, such an attack would
necessarily involve a large quantity of flammable liquid. The HMR
currently require security plans for shipments of flammable liquids in
amounts that require placarding. In this NPRM, PHMSA proposes to
require security plans for shipments of Class 3 materials in amounts
greater than or equal to 3,000 L in a single package or container.
Security plans would not be required for shipments in lesser
quantities.
9. Class 3 and Division 4.1 Desensitized Explosives
    Desensitized explosive substances are explosive materials that have
been rendered non-explosive, according to the UN Manual of Tests and
Criteria, by means of adding a diluting liquid or solid. The diluted
substances, once tested and found not in Class 1, are regulated under
the HMR as Division 4.1 flammable solids or Class 3 flammable liquids,
depending on their physical state and hazardous properties. Water is
the most commonly used diluent/desensitizing material, even if it is
not miscible (dissolves in) with the explosive. Other diluents can
include flammable or non-flammable liquids or solids that have no
explosive properties in and of themselves, but prevent the ability of
the explosive substance to initiate or sustain a detonation or
deflagration. Plasticizing liquids like triacetin, dibutyl phthalate,
vegetable oil, or paraffin oil are sometimes used. Simple solid
diluents for explosives include bentonite clay, plastic granules,
gypsum and waxes of various types. Some diluents like water are easily
separated from the explosive and the explosive is easy to reconstitute
by drying. Some diluents can be extracted by dissolving them away from
the explosive (or vice versa) with various solvents. Large quantities
of desensitized explosives are moved by commercial rail and motor
carrier every year in support of mining and other industrial
operations.
    Desensitized explosives have been used in terrorist attacks here
and overseas. Urea nitrate, for example, has been used in a number of
terrorist

attacks, most notably the first vehicle-borne improvised explosive
device attack on the World Trade Center in 1993. Currently, the HMR
require security plans for placarded shipments of Class 3 or Division
4.1 desensitized explosives. Because many desensitized explosives can
be readily reconstituted into explosive materials, this NPRM proposes
to require security plans for shipments of any quantity of Class 3 or
Division 4.1 desensitized explosives. Other materials within Division
4.1 would not be subject to the security plan requirement under this
NPRM.
10. Division 4.2 Spontaneously Combustible Material
    Division 4.2 spontaneously combustible materials are pyrophoric or
self-heating materials. Division 4.2 materials in Packing Group I are
pyrophoric materials. A pyrophoric material is a liquid or solid that,
even in small quantities and without an external ignition source, can
ignite when it comes in contact with air. Division 4.2 materials in
Packing Groups II and III are self-heating materials. A self-heating
material is likely to self-heat when in contact with air. About one
million tons of these materials are shipped in commerce each year.
    Currently, the HMR require security plans for placarded shipments
of Division 4.2 materials. In this NPRM, PHMSA proposes to retain the
security plan requirement for shipments of 3,000 kg or more in a single
packaging of Division 4.2 materials in Packing Groups I and II and to
eliminate the security plan requirement for Division 4.2 materials in
Packing Group III because assessment indicates that the security risks
associated with these materials are not sufficient to warrant
development and implementation of security plans.
11. Division 4.3 Dangerous When Wet Material
    Division 4.3 materials are water reactive--they emit flammable or
toxic gases upon contact with water. The most hazardous Division 4.3
materials spontaneously ignite on contact with water. These are
industrial chemicals easily available with no security restrictions.
Roughly one million tons are shipped by highway each year, in addition
to about 3,000 yearly shipments by rail. Division 4.3 materials may be
of interest to terrorists planning a toxic gas attack on crowded venues
like subways, buses, shopping centers, or movie theaters.
    Currently, the HMR require security plans for shipments of Division
4.3 materials in any quantity. PHMSA believes this requirement provides
an appropriate level of security, given the potential vulnerabilities
and risks associated with these materials; therefore, this NPRM
proposes to retain this requirement.
12. Division 5.1 Oxidizing Material
    An oxidizer is a material that may cause or enhance the combustion
of other materials, generally by yielding oxygen. Some oxidizers may
explode when heated. Perchlorates are a subset of Division 5.1
materials. Both potassium perchlorate and ammonium perchlorate are used
extensively in the pyrotechnics industry; ammonium perchlorate is a
component of solid rocket fuel. Ammonium nitrate and ammonium nitrate
fertilizers are also examples of oxidizing materials. As a strong
oxidizing agent, ammonium nitrate makes an explosive mixture when
combined with a fuel such as a hydrocarbon, usually diesel fuel (oil)
or, sometimes, kerosene.
    Division 5.1 oxidizing materials are frequently used as components
of IEDs. On April 19, 1995, Timothy McVeigh blew up the Murrah Federal
Building in Oklahoma City with a bomb made from fertilizer and fuel
oil. Division 5.1 materials are industrial chemicals easily available
with no security restrictions. Approximately nine million tons of
Division 5.1 materials are shipped by motor carrier each year. The
railroads transport about 50,000 shipments yearly.
    Currently, the HMR require security plans for placarded shipments
of Division 5.1 materials. This NPRM proposes to require a security
plan for shipments of Division 5.1 materials in Packing Groups I and
II, perchlorates, and ammonium nitrate (including fertilizers) in a
single packaging, in a quantity of 3,000 kg or more for solids or 3,000
L or more for liquids. Except for perchlorates and ammonium nitrate, we
are proposing to eliminate the security plan requirement for Division
5.1 materials in Packing Group III.
13. Division 5.2 Organic Peroxides
    Organic peroxides are temperature sensitive, self-reacting
materials that pose both a fire and explosion hazard, and may be both
toxic and corrosive. Once an organic peroxide reaches a certain
temperature (called the self-accelerating decomposition temperature or
SADT), its reaction will proceed uncontrollably. Organic peroxides are
assigned to types A through G according to their reactivity. The most
dangerous organic peroxides will detonate much like a low-energy
Division 1.1 explosive. The most dangerous organic peroxides, assigned
to Type A, are prohibited from transportation; those that are permitted
in transportation are stringently regulated in terms of the quantities
that may be transported and the type of packaging that may be utilized.
Organic peroxides with SADTs in the ambient temperature range must be
transported with temperature controls. Type B organic peroxides are the
most reactive and, hence, the most dangerous organic peroxides
permitted in transportation.
    Organic peroxides were used in the July 2005 terrorist bombings in
London, and were planned for use by terrorists recently plotting to
destroy aircraft flying from the United Kingdom to the United States.
Terrorists call these materials ``Mother of Satan,'' an indication of
their attractiveness as weapons or components of weapons. Minimal
amounts of Division 5.2 organic peroxides are transported on a regular
basis.
    The HMR currently require security plans for liquid or solid Type
B, temperature controlled Division 5.2 organic peroxides transported in
any quantity. PHMSA believes that this requirement provides an
appropriate level of security, given the potential vulnerabilities and
risks associated with these materials and proposes to retain this
requirement in this NPRM.
14. Division 6.1 Poisonous Materials (Other Than PIH Materials)
    Division 6.1 materials may be toxic to humans through oral
ingestion or dermal exposure. As defined in the HMR, Division 6.1
materials have a range of toxicity values; the most toxic materials are
assigned to Packing Group I. Division 6.1 materials can be used to
contaminate food and water supplies; however, the effectiveness of such
an attack would depend on the toxicity level of the material and the
quantity utilized. More than eight million tons of these materials are
shipped in commerce on a yearly basis. Of this, approximately two
million tons are transported by highway; railroads move more than
30,000 shipments each year.
    The HMR currently require security plans for placarded shipments of
Division 6.1 materials in all packing groups. In this NPRM, PHMSA
proposes to require security plans for shipments of Division 6.1,
Packing Group I materials in any amount and shipments of 3,000 L or
more of Division 6.1, Packing Groups II and III materials. Security
plans would not be required for shipments of Division 6.1, Packing
Groups II and III in amounts less than 3,000 L.

15. Division 6.2 Infectious Substances and Select Agents
    A Division 6.2 infectious substance is a material that contains a
pathogen, which is a microorganism or other agent that can cause
disease in humans or animals. The degree of risk associated with the
transportation of a given Division 6.2 material depends on the nature
of the material, including the virulence of the material, the way it is
transmitted between humans or animals, the manner and ease of
transmission between humans or animals, and the availability of
preventive measures and treatment protocols.
    Select agents are infectious substances and toxins determined by
the Center for Disease Control and United States Department of
Agriculture to present a significant public health risk. Examples
include ebola viruses, ricin, small pox, avian flu virus, foot-and-
mouth disease virus, and anthrax. Use and movement of these materials
are very strictly controlled.
    Because of the potential for select agents to be developed as
weapons to cause serious and significant outbreaks of disease in humans
and animals, the HMR require security plans for shipments. This
requirement provides an appropriate level of security, given the
potential vulnerabilities and risks associated with these materials.
Therefore, PHMSA proposes to retain this requirement in this NPRM.
However, in addition to the proposed requirement for pathogens that
affect humans and animals, expansion of the security plan requirements
to include pathogens that affect plants is also being considered.
    In accordance with 9 CFR part 121 we currently require security
plans for biological agents and toxins with the potential to pose a
severe threat to public health and safety, to animal health, or to
animal products. As a result of concerns expressed by USDA's Animal and
Plant Health Inspection Service (APHIS), PHMSA believes that the
expansion of the security plan requirements to include biological
agents and toxins that have the potential to pose a severe threat to
plant health or to plant products is appropriate. To achieve this, the
current security plan requirements for Division 6.2 materials to
include materials listed in 7 CFR part 331 would be expanded. Part 331
implements the provisions of the Agricultural Bioterrorism Protection
Act of 2002 setting forth the requirements for possession, use, and
transfer of select agents and toxins. APHIS supports the inclusion of
select agent plant pathogens to the list Division 6.2 materials
requiring security plans. Stakeholders are urged to fully consider the
implications of requiring security plans for select agent plant
pathogens and to provide comments.
16. Class 7 Radioactive Materials
    The United States transportation system annually moves millions of
shipments of radioactive materials, the largest share consisting of
small packages containing radiopharmaceuticals. The HMR security plan
requirements currently apply to a person who offers for transportation
or transports a highway route-controlled quantity (HRCQ) of a Class 7
(radioactive) material. The HMR also require security plans for any
shipment that requires placarding under subpart F of part 172; this
includes shipments of packages with radioactive Yellow III labels and
exclusive use shipments of low specific activity material and surface
contaminated objects.
    Our evaluation suggests that these thresholds must be expanded to
include additional materials that, by virtue of their relative
radiation levels and physical characteristics, pose similar security
threats. Security concerns surrounding the transport of radioactive
materials reflect their potential use in radiological dispersal devices
(RDDs) (or ``dirty bombs''), designed to spread radioactive material
from the detonation of conventional explosives or other means, and
radiological exposure devices (REDs), designed to expose people to
radiation. The consequences of an RDD or RED event would depend on the
specific radioactive material and quantity involved, the dispersal or
exposure mechanism, and the environmental conditions.
    This NPRM proposes to adopt the security thresholds recommended by
the International Atomic Energy Agency (IAEA) for radioactive materials
in transport. These levels reflect research conducted by the U.S.
Department of Energy, the U.S. Nuclear Regulatory Commission (NRC), and
the IAEA on the attractiveness of radionuclides for malevolent use. The
IAEA ``Code of Conduct on the Safety and Security of Radioactive
Sources'' (IAEA/CODEOC/2004) was revised to take account of
international concerns following the events of September 11, 2001. The
United States played a key role in revising the Code of Conduct and has
been successful in gaining national commitments to the Code of Conduct
by more than 80 countries. One of the essential features of the Code of
Conduct is the cataloging of radioactive sources based on their
relative potential to cause immediate injury or death. There are three
categories that range from Category 1, posing the highest short-term
exposure risk to Category 3, posing relatively little risk of permanent
injury through brief exposure.
    The IAEA has used the Code of Conduct in the development of the
recently issued Nuclear Security Series Guide, ``Security of
Radioactive Material during Transport'' (in draft, expected to be
issued 2009). This document is intended to provide IAEA Member States
with guidance on implementing security measures for the transport of
radioactive material. The threshold values outlined in this Notice were
derived on the basis of the potential radiological consequences of
malicious acts involving radioactive material. The Guide calls for
enhanced security of radioactive material in transport, including
adoption and compliance with security plans for consignments that
include at least one package meeting one or both of the following
activity threshold values:
     For radioactive sources and other forms of radioactive
material containing radionuclides covered by the Code of Conduct,
Category 1 and Category 2; or
     For all other radionuclides, 3000 A2 per
package.
    The Code of Conduct values are universally understood and
implemented for security of radioactive sources internationally as well
as domestically by the NRC. For radionuclides not included in the Code
of Conduct, a value of 3000 A2 can be used to identify
packages that are subject to the enhanced transport security measures,
since the A2 value of a radionuclide never exceeds the
A1 value.
17. Class 8 Corrosive Materials
    For purposes of the HMR, a Class 8 corrosive material is a liquid
or solid that causes full thickness destruction of human skin at the
site of contact within a specified period of time. Class 8 materials in
Packing Group I cause full thickness destruction of human skin tissue
within 60 minutes after an exposure time of 3 minutes. These materials
can cause irreversible damage to human tissue. Examples include nitric
acid, sodium hydroxide (caustic soda or lye), and hydrochloric acid.
Class 8 materials also exhibit corrosive properties towards other
materials, most notably aluminum and steel.
    Given the rate at which they react with human skin, aluminum and
steel, these materials could be used to sabotage infrastructure, cause
mass injury through proper dispersion, and

present a method for sabotaging other hazardous material containers
such as cylinders, tank cars, and cargo tank motor vehicles.
Approximately 90 million tons of these materials are transported in
commerce each year, including more than 50 million tons transported by
motor carrier. Rail carriers annually move more than 270,000 shipments
of Class 8 corrosive materials.
    The HMR currently require security plans for placarded shipments of
Class 8 materials in all packing groups. In this NPRM, PHMSA proposes
to retain security plan requirements for shipments of Class 8, Packing
Group I materials in amounts greater than or equal to 3,000 L in a
single package or container. Lesser amounts of PG I and PG II and III
corrosive materials pose little, if any, security risk. Therefore,
security plans would not be required for shipments of Class 8
materials, Packing Group I, in amounts less than 3,000 L, nor would
security plans be required for shipments of Class 8 materials in
Packing Groups II or III.
18. Class 9 Materials
    Class 9 materials are materials that present a hazard during
transportation but do not meet the definition of any other hazard
class. Class 9 covers elevated temperature materials and materials that
pose a risk to the environment--hazardous substances, hazardous wastes,
and marine pollutants. Although it is possible that Class 9 materials
could be deliberately used to contaminate the environment, the
likelihood of such a terrorist action is remote because of the
quantities of material that would be required and the relatively minor
result that would be achieved.
    Currently, the HMR require security plans for Class 9 materials
transported in a bulk packaging with a capacity equal to or greater
than 13,248 L (3,500 gallons) for liquids or gases or greater than
13.24 cubic meters (468 cubic feet) for solids. This NPRM proposes to
eliminate this requirement; the security risks associated with the
transportation of these materials are not sufficient to warrant
development and implementation of security plans.

IV. Additional Revisions to Security Requirements

    This NPRM also proposes a number of amendments to clarify and
enhance current security requirements, including requirements for
security plans and for training. These proposals are detailed below.

A. Revisions to Security Plan Requirements

    Section 172.802 of the HMR establishes the components that must be
included as part of a hazardous materials transportation security plan.
Paragraph (a) of this section requires that a security plan include an
assessment of possible transportation security risks associated with
the hazardous materials covered by the security plan and appropriate
measures to address the identified security risks. This assessment is
part of the plan and must be in writing and maintained with the plan in
accordance with Sec.  172.802(b). It has come to PHMSA's attention that
there is some confusion as to whether the security risk assessment must
be in writing. To clarify this, the NPRM proposes to specify that the
security plan, including the security risk assessment, must be in
writing and must be retained for as long as the plan remains in effect.
    In addition, the NPRM proposes to clarify the application of the
required risk assessment to site-specific and location-specific
security issues. As specified in the proposed rule text, the risk
assessment must include an assessment of specific risks that exist on
specific routes or in specific locations.
    Also proposed is a revised paragraph (b) to clarify the following
security plan requirements:
     The security plan must identify, by job title, the senior
management official responsible for the overall development and
implementation of the plan.
     The security plan must be reviewed at least annually and
updated if circumstances change (e.g., acquisitions, mergers, operating
rights, materials transported, expanded or reduced service levels).
     The security plan must include a plan for training hazmat
employees.
     The security plan must include security duties for each
position or department that is responsible for the plan's
implementation and the process for notifying employees when specific
elements of the security plan must be implemented.

B. Security Training

    Companies that are subject to the security plan requirements in
subpart I of part 172 are required to provide in-depth training
concerning their security plan and its implementation. The in-depth
security training must cover company security objectives, specific
security procedures, employee responsibilities, actions to take in the
event of a security breach, and the organizational security structure.
As written, the in-depth security-training requirement appears to apply
to all hazmat employees; this was not the intention. The in-depth
security training requirement was meant to apply only to hazmat
employees who perform regulated functions related to the transportation
of the materials covered by the security plan or who are responsible
for implementing the security plan. This NPRM proposes to clarify the
in-depth security-training requirement by specifying its application to
hazmat employees who are directly involved with implementing security
plans.
    As discussed above, this NPRM proposes to require security plans to
be reviewed at least once each year and updated as necessary to reflect
changing circumstances. The in-depth security training requirement must
be provided to hazmat employees responsible for the plan's
implementation once every three years, in accordance with Sec.
172.704(c). This NPRM also proposes to require in-depth security
training once every three years or, if the security plan is revised
during the recurrent training cycle, within 90 days of implementation
of the revised security plan. In this way, those hazmat employees
responsible for implementing the security plan will be trained in a
timely manner concerning any changes or revisions to the plan.

C. Coordination With TSA

    DHS is the lead Federal agency for transportation and hazardous
materials security. DOT consults and coordinates on security-related
hazardous materials transportation matters to ensure consistency with
DHS requirements and broader security objectives. Both departments work
to ensure that the regulated industry is not confronted with
inconsistent government-issued security guidance or requirements.
    The Federal hazardous materials transportation law (Federal hazmat
law, 49 U.S.C. 5101 et seq.) authorizes the Secretary of Transportation
to ``prescribe regulations for the safe transportation, including
security, of hazardous material in intrastate, interstate, and foreign
commerce.'' The Secretary has delegated this authority to PHMSA.
Authority to enforce the HMR has been delegated to the FAA ``with
particular emphasis on the transportation or shipment of hazardous
materials by air;'' the FRA ``with particular emphasis on the
transportation or shipment of hazardous materials by railroad;'' PHMSA
``with particular emphasis on the shipment of hazardous materials and
the manufacture, fabrication, marking, maintenance, reconditioning,
repair or

test of multi-modal containers that are represented, marked, certified,
or sold for use in the transportation of hazardous materials;'' and the
FMCSA ``with particular emphasis on the transportation or shipment of
hazardous materials by highway.'' 49 CFR part 1, subpart C. Thus,
enforcement of the security plan and training regulations is shared
among the DOT operating administrations, with each placing particular
emphasis on their respective authorities.
    Under Section 101(a) of the Aviation and Transportation Security
Act (ATSA) (codified at 49 U.S.C. 114) and 49 CFR 1502.1, TSA has broad
responsibility and authority for ``security in all modes of
transportation * * *'' TSA has additional responsibilities for surface
transportation security, as specified in 49 U.S.C. 114(f), through
delegation by the Secretary of Homeland Security under the 9/11
Commission Act.
    In sum, TSA's authority with respect to transportation security is
comprehensive and supported with specific powers related to the
development and enforcement of regulations, security directives,
security plans, and other requirements. Under this authority, TSA may
identify a security threat to any mode of transportation, develop a
measure for dealing with that threat, and enforce compliance with that
measure. Moreover, in addition to inspecting for compliance with
specific regulations, TSA may conduct general security assessments.
Under its authority, TSA may assess threats to transportation security;
monitor the state of awareness and readiness throughout the various
sectors; determine the adequacy of an owner or operator's
transportation-related security measures; and identify security gaps.
TSA, for example, could inspect and evaluate for emerging or potential
security threats based on intelligence indicators to determine whether
the owner or operator's strategies and security measures are likely to
deter deficiencies.
    When PHMSA adopted its security regulations, it was stated that
these regulations were ``the first step in what may be a series of
rulemakings to address the security of hazardous materials shipments.''
68 FR 14511. PHMSA also noted that TSA ``is developing regulations that
are likely to impose additional requirements beyond those established
in this final rule'' and stated that it would ``consult and coordinate
with TSA concerning security-related hazardous materials transportation
regulations * * *'' Id. In this regard, note that under Sec.  1512 of
the 9/11 Commission Act and delegated authority from the Secretary of
Homeland Security, TSA must promulgate regulations establishing
standards and guidelines for developing and implementing vulnerability
assessments and security plans for ``high-risk'' railroad carriers.
After TSA promulgates these regulations, these railroad carriers would
be required to submit vulnerability assessments and security plans to
DHS for review and approval. In addition, Sec.  1517 of the 9/11
Commission Act requires DHS to develop and issue regulations for a
training program to prepare railroad frontline employees for potential
security threats and conditions.
    The TSA regulations are intended to supersede the PHMSA security
plan and security training requirements for railroad carriers that will
be subject to the TSA regulations. Once these TSA regulations have been
issued, the PHMSA security plan and security training requirements for
railroad carriers that will be subject to the TSA regulations will be
reevaluated and revised as appropriate.
    We worked closely with TSA to align our proposed list of materials
subject to security plans and the TSA Highway Security Sensitive
Hazardous Materials (HSSM) list. TSA's HSSM list is to be used in
conjunction with voluntary security practices (referred to as Security
Action Items or SAIs) to increase the security of certain hazardous
materials transported by motor vehicle. As a result, the PHMSA proposal
and the TSA list are very similar; however, there are some minor
differences. As provided below, in four instances our proposal is more
restrictive than the TSA list.
    1. We require all materials that meet the definition of a PIH
material to have a security plan; TSA set thresholds of 5 lbs for
Hazard Zone A and B and bulk for Zones C and D.
    2. We include flammable liquids in PG III (i.e., diesel fuel,
kerosene, jet fuel, fuel oil) and TSA does not.
    3. Our proposal includes any quantity of desensitized explosives in
Division 4.1 and TSA lists materials by identification number.
    4. For infectious substances, the TSA list does not include the
USDA list of select agents or overlapping agents and toxins in 43 CFR
73.4.
    The security plan requirements established by the HMR are to be
used as a baseline for security planning. Though there are some minor
differences between our proposal and the TSA list, the overall approach
taken by the two agencies in identifying materials that should be
subject to security based requirements is consistent and supported by
industry associations, offerors, carriers, and private citizens, as
evidenced by the comments submitted in response to our ANPRM. Please
submit any additional comments regarding the alignment of our proposed
list with the TSA HSSM list during the comment period for this NPRM.
Interested persons may submit their comments through the Federal
eRulemaking Portal (on the Web site http://www.regulations.gov) under
PHMSA docket number PHMSA-06-25885 by the date provided in the DATES
section of this rulemaking.
    TSA, PHMSA, FMCSA, and FRA will continue to work together in the
development of hazardous materials transportation security planning
regulations and standards. TSA may issue security planning regulations
in the future; if such an action is taken we will reconsider our
security plan requirements for the motor carriers that would be subject
to TSA's regulations. As TSA develops security planning regulations
applicable to hazardous materials, TSA will carefully consider how
those regulations should relate to the HMR and will work with PHMSA,
FMCSA, and FRA to avoid unnecessary duplication.
    As it implements its transportation security authority, TSA may
identify a need to review transportation security plans developed and
implemented in accordance with subpart I of part 172 of the HMR. Under
ATSA, TSA has the authority to ``ensure the adequacy of security
measures for the transportation of cargo'' 49 U.S.C. 114(f)(10) and to
``oversee the implementation, and ensure the adequacy, of security
measures at airports and other transportation facilities'' 49 U.S.C.
114(f)(11). Therefore, parties subject to this regulation must allow
TSA and other authorized DHS officials, at any time and in a reasonable
manner, without advance notice, to enter and inspect and must provide
TSA inspectors with a copy of any security-related document required by
the HMR or pursuant to TSA's statutory or regulatory authorities. This
includes security plans and training documents required under 49 CFR
part 172. However, TSA does not have the authority to directly enforce
DOT safety or security requirements established in the HMR. If, in the
course of an inspection of a railroad or motor carrier or a rail or
highway hazardous material shipper or receiver, TSA identifies evidence
of non-compliance with a DOT safety or security regulation, TSA will
provide the information to FRA (for rail) or FMCSA (for motor carriers)
and PHMSA for appropriate action.

Similarly, if a DOT inspector identifies evidence of non-compliance
with a TSA security regulation or identifies other security
deficiencies, DOT will provide the information to TSA for appropriate
action.

V. Regulatory Analyses and Notices

A. Executive Order 12866 and DOT Regulatory Policies and Procedures

    This rulemaking is considered a significant regulatory action under
section 3(f) of Executive Order 12866 and the Regulatory Policies and
Procedures of the Department of Transportation (44 FR 11032). This NPRM
was reviewed by the Office of Management and Budget.
    Executive Order 12866 requires agencies to regulate in the ``most
cost-effective manner,'' to make a ``reasoned determination that the
benefits of the intended regulation justify its costs,'' and to develop
regulations that ``impose the least burden on society.'' Because this
NPRM proposes to narrow the list of materials for which security plans
are required, it will reduce the number of shippers and carriers
required to develop security plans in accordance with subpart I of part
172 of the HMR. It is estimated that about 10,119 entities would no
longer be subject to current security plan and associated in-depth
training requirements. The annual benefit resulting from the proposals
in this NPRM is estimated to be about $3.6 million--$2.8 million in
avoided costs related to development of security plans and $0.8 million
in cost savings for associated training. Evaluated over a 15-year
period at the standard discount rate of 7%, the estimated net present
value of the cost savings is approximately $32.6 million. The
regulatory impact assessment is accessible by PHMSA docket number
(PHMSA-06-25885) through the Federal eRulemaking Portal (http://
www.regulations.gov).

B. Executive Order 13132

    This proposed rule has been analyzed in accordance with the
principles and criteria set forth in Executive Order 13132
(``Federalism''). Any rule resulting from this rulemaking will preempt
State, local and Indian tribe requirements but will not have
substantial direct effects on the States, the relationship between the
national government and the States, or the distribution of power and
responsibilities among the various levels of government. Therefore, the
consultation and funding requirements of Executive Order 13132 do not
apply.

C. Executive Order 13175

    This proposed rule was analyzed in accordance with the principles
and criteria set forth in Executive Order 13175 (``Consultation and
Coordination with Indian Tribal Governments''). Because this proposed
rule does not have tribal implications, and does not impose substantial
direct compliance costs, the funding and consultation requirements of
Executive Order 13175 do not apply.

D. Regulatory Flexibility Act

    The Regulatory Flexibility Act (5 U.S.C. 601 et seq.) requires an
agency to review regulations to assess their impact on small entities
unless the agency determines that a rule is not expected to have a
significant impact on a substantial number of small entities. PHMSA has
determined that, while the requirements of the proposed rule would
apply to a substantial number of small entities, the economic impact on
those small entities would not be substantial.
    As indicated above, about 10,119 entities would no longer be
subject to current security plan and in-depth training requirements if
the proposals in this NPRM are adopted. These entities are persons who
offer for transportation or transport hazardous materials in commerce.
Unless alternative definitions have been established by the agency in
consultation with the Small Business Administration (SBA), the
definition of ``small business'' has the same meaning as under the
Small Business Act. Since no such special definition has been
established, the thresholds published by SBA for industries subject to
the HMR are utilized. Just under 90% of shippers and carriers affected
by the proposals in this NPRM are small businesses.
    Based on an analysis of the potential benefits of the proposals in
this NPRM, PHMSA concludes that, while the proposed rule would apply to
a substantial number of small entities, it will not have a significant
economic impact on those small entities. For a small business that
would no longer be subject to the security plan requirements and
associated in-depth training requirements, the cost savings would total
between $332 and $437 annually.

E. Paperwork Reduction Act

    PHMSA currently has an approved information collection under OMB
Control Number 2137-0612, ``Hazardous Materials Security Plans'' with
an expiration date of May 31, 2009. This NPRM may result in a decrease
in the annual burden and costs under OMB Control Number 2137-0612 due
to proposed changes to revise the list of materials for which hazardous
materials transportation security plans are required.
    Under the Paperwork Reduction Act of 1995, no person is required to
respond to an information collection unless it has been approved by OMB
and displays a valid OMB control number. Section 1320.8(d), title 5,
Code of Federal Regulations requires that PHMSA provide interested
members of the public and affected agencies an opportunity to comment
on information and recordkeeping requests.
    This notice identifies a revised information collection request
that PHMSA will submit to OMB for approval based on the requirements in
this proposed rule. PHMSA has developed burden estimates to reflect
changes in this proposed rule. PHMSA estimates that the information
collection and recordkeeping burden as proposed in this rule would be
decreased as follows:
    OMB Control No. 2137-0612:
    Decrease in Annual Number of Respondents: 10,119.
    Decrease in Annual Responses: 10,119.
    Decrease in Annual Burden Hours: 55,655.
    Decrease in Annual Burden Costs: $2,782,750.
    PHMSA specifically requests comments on the information collection
and recordkeeping burdens associated with developing, implementing, and
maintaining these requirements for approval under this proposed rule.
    Requests for a copy of this information collection should be
directed to Deborah Boothe or T. Glenn Foster, Office of Hazardous
Materials Standards (PHH-11), Pipeline and Hazardous Materials Safety
Administration, 1200 New Jersey Avenue, SE., Washington, DC 20590-0001,
Telephone<PHONE_NUMBER>.
    Address written comments to the Dockets Unit as identified in the
ADDRESSES section of this rulemaking. We must receive comments
regarding information collection burdens prior to the close of the
comment period identified in the DATES section of this rulemaking. In
addition, you may submit comments specifically related to the
information collection burden to the PHMSA Desk Officer, Office of
Management and Budget, at fax number<PHONE_NUMBER>. If these proposed
requirements are adopted in a final rule, PHMSA will submit the revised
information collection and

recordkeeping requirements to OMB for approval.

F. Regulation Identifier Number (RIN)

    A regulation identifier number (RIN) is assigned to each regulatory
action listed in the Unified Agenda of Federal Regulations. The
Regulatory Information Service Center publishes the Unified Agenda in
April and October of each year. The RIN contained in the heading of
this document can be used to cross-reference this action with the
Unified Agenda.

G. Unfunded Mandates Reform Act

    This proposed rule does not impose unfunded mandates under the
Unfunded Mandates Reform Act of 1995. It does not result in costs of
$132 million or more to either State, local or tribal governments, in
the aggregate, or to the private sector, and is the least burdensome
alternative that achieves the objective of the rule.

H. Environmental Assessment

    The National Environmental Policy Act (NEPA), Sec. Sec.  4321-4375,
requires Federal agencies to analyze proposed actions to determine
whether the action will have a significant impact on the human
environment. The Council on Environmental Quality (CEQ) regulations
order Federal agencies to conduct an environmental review considering
(1) the need for the proposed action, (2) alternatives to the proposed
action, (3) probable environmental impacts of the proposed action and
alternatives, and (4) the agencies and persons consulted during the
consideration process. 40 CFR Sec.  1508.9(b).
    Purpose and Need. The current security plan requirements, which
became effective on September 25, 2003, apply to shipments of placarded
loads of hazardous materials and to select agents. PHMSA has received
two petitions for rulemaking requesting a review and reevaluation of
the requirements. The petitioners cite several examples of hazardous
materials that, based on hazard class and quantity, require placarding
under the HMR and, therefore, are subject to security plan
requirements. Examples include automobile batteries, inks, paint, and
flavoring extracts. Petitioners suggest that it is highly unlikely a
terrorist would use such materials to cause loss of life, destruction
of property, or damage to the environment.
    PHMSA agrees with the petitioners that the list of materials for
which security plans are required should be revised. Since 2003, both
the industry and the government have had four years of experience in
evaluating security risks associated with specific hazardous materials
and transportation environments and identifying appropriate measures to
address those risks. The revisions proposed in this NPRM are based on
an evaluation of possible security threats posed by specific types and
classes of hazardous materials and are intended to ensure that the
security plan requirement applies only to those materials that present
a significant security threat in transportation based on the hazard
class and packing group of the material and the quantity or volume
transported.
    Alternatives. PHMSA considered the following alternatives:
    No action--Under this alternative, security plan requirements would
continue to apply to shipments of placarded loads of hazardous
materials and to select agents, including some materials that do not
pose a transportation security risk. This alternative is not risk-based
and results in the over-regulation of materials that are not likely to
be used in a terrorist or criminal act. This action is not recommended.
    Require security plans only for materials subject to FMCSA permit
regulations--Under this alternative, security plan requirements would
apply only to shipments of hazardous materials subject to safety permit
requirements in accordance with FMCSA regulations at 49 CFR part 385. A
safety permit is required for certain shipments of radioactive
materials, explosives, PIH materials, and compressed or refrigerated
methane or liquefied natural gas. This alternative would not include a
number of materials that pose a significant security risk, including
flammable gases, flammable liquids, desensitized explosives, dangerous
when wet materials, oxidizing materials, organic peroxides, poisons,
and select agents. Selection of this alternative could result in
significant adverse environmental impacts as a result of a terrorist or
criminal action using such materials. This alternative is not
recommended.
    Adopt UN Recommendations Criteria for Security Plan Requirements--
Under this alternative, security plans would be required for the
materials identified in the UN Recommendations as high consequence
dangerous goods--that is, materials with the potential for mis-use in a
terrorist incident that may produce serious consequences such as mass
casualties or mass destruction. The UN list of high consequence
dangerous goods includes most of the hazardous materials that pose a
significant transportation security risk. The materials that would no
longer be subject to security planning requirements are unlikely to be
targeted for criminal or terrorist use; therefore, the adverse
environmental consequences of this alternative are expected to be
minimal. With some modifications, as detailed in this NPRM, this is the
selected alternative.
    Analysis of Environmental Impacts. Hazardous materials are
substances that may pose a threat to public safety or the environment
during transportation because of their physical, chemical, or nuclear
properties. The hazardous material regulatory system is a risk
management system that is prevention-oriented and focused on
identifying a safety hazard and reducing the probability and quantity
of a hazardous material release. Hazardous materials are categorized by
hazard analysis and experience into hazard classes and packing groups.
The regulations require each shipper to classify a material in
accordance with these hazard classes and packing groups; the process of
classifying a hazardous material is itself a form of hazard analysis.
Further, the regulations require the shipper to communicate the
material's hazards through use of the hazard class, packing group, and
proper shipping name on the shipping paper and the use of labels on
packages and placards on transport vehicles. Thus the shipping paper,
labels, and placards communicate the most significant findings of the
shipper's hazard analysis. A hazardous material is assigned to one of
three packing groups based upon its degree of hazard--from a high
hazard Packing Group I to a low hazard Packing Group III material. The
quality, damage resistance, and performance standards of the packaging
in each packing group are appropriate for the hazards of the material
transported.
    Releases of hazardous materials, whether caused by accident or
deliberate sabotage, can result in explosions or fires. Radioactive,
toxic, infectious, or corrosive hazardous materials can have short- or
long-term exposure effects on humans or the environment. Generally,
however, the hazard class definitions are focused on the potential
safety hazards associated with a given material or type of material
rather than the environmental hazards of such materials.
    Under the HMR, hazardous materials may be transported by aircraft,
vessel, rail, and highway. The potential for environmental damage or
contamination exists when packages of hazardous materials are involved
in accidents or en route incidents resulting from cargo shifts, valve
failures, package failures,

loading, unloading, collisions, handling problems, or deliberate
sabotage. The release of hazardous materials can cause the loss of
ecological resources and the contamination of air, aquatic
environments, and soil. Contamination of soil can lead to the
contamination of ground water. For the most part, the adverse
environmental impacts associated with releases of most hazardous
materials are short-term impacts that can be reduced or eliminated
through prompt clean-up/decontamination of the accident scene.
    The security plan requirements in subpart I of part 172 of the HMR
are intended to reduce the potentially catastrophic consequences,
including adverse environmental consequences, of a criminal or
terrorist incident involving hazardous materials in transportation. A
security plan must include an assessment of possible transportation
security risks and appropriate measures to address the assessed risks.
Specific measures implemented as part of the plan may vary with the
level of threat at a particular time. At a minimum, the security plan
must address personnel security, unauthorized access, and en route
security. For personnel security, the plan must include measures to
confirm information provided by job applicants for positions involving
access to and handling of the hazardous materials covered by the plan.
For unauthorized access, the plan must include measures to address the
risk of unauthorized persons gaining access to materials or transport
conveyances being prepared for transportation. For en route security,
the plan must include measures to address security risks during
transportation, including the security of shipments stored temporarily
en route to their destinations.
    This NPRM proposes to narrow the list of materials for which a
security plan would be required to ensure that the security plan
regulations are targeted to those materials that pose a significant
transportation security risk. It is possible to envision scenarios in
which hazardous materials other than those identified in this NPRM
could be used to inflict serious damage in a terrorist or criminal
incident. However, our assessment of the security risks associated with
such materials, detailed elsewhere in this preamble, suggests that they
are unlikely to be targeted. PHMSA therefore concludes that there are
no significant environmental impacts associated with this NPRM.
    Consultation and Public Comment. As discussed above, PHMSA
published an ANPRM and hosted a public meeting to solicit public
comments concerning whether the list of materials for which security
plans are currently required should be modified. Commenters were asked
to address a number of issues related to the identification of
materials that pose a security threat sufficient to justify preparation
and implementation of a security plan. Thirty-four comments were
received from industry associations, shippers, carriers, and private
citizens. In addition, six people made presentations at the public
meeting.
    Interested persons are invited to submit comments on the potential
environmental, safety, and other impacts of the proposals in this NPRM.

List of Subjects in 49 CFR Part 172

    Hazardous materials transportation, Hazardous waste, Labeling,
Packaging and containers, Reporting and recordkeeping requirements.

    In consideration of the foregoing, PHMSA is proposing to amend
title 49 chapter I, subchapter C, as follows:

PART 172--HAZARDOUS MATERIALS TABLE, SPECIAL PROVISIONS, HAZARDOUS
MATERIALS COMMUNICATIONS, EMERGENCY RESPONSE INFORMATION, AND
TRAINING REQUIREMENTS

    1. The authority citation for part 172 continues to read as
follows:

    Authority: 49 U.S.C. 5101-5128, 44701; 49 CFR 1.53.

    2. In Sec.  172.704, paragraphs (a)(5), and (c)(2) are revised to
read as follows:

Sec.  172.704  Training requirements.

    (a)* * *
    (5) In-depth security training. Each hazmat employee of a person
required to have a security plan in accordance with subpart I of this
part who handles hazardous materials covered by the plan, performs a
regulated function related to the hazardous materials covered by the
plan, or is responsible for implementing the plan must be trained
concerning the security plan and its implementation. Security training
must include company security objectives, organizational security
structure, specific security procedures, specific security duties and
responsibilities for each employee, and specific actions to be taken by
each employee in the event of a security breach.
* * * * *
    (c)* * *
    (2) Recurrent training. A hazmat employee must receive the training
required by this subpart at least once every three years. For in-depth
security training required under paragraph (a)(5) of this section, a
hazmat employee must be trained at least once every three years or, if
the security plan for which training is required is revised during the
three-year recurrent training cycle, within 90 days of implementation
of the revised plan.
* * * * *
    3. In Sec.  172.800, paragraph (b) is revised to read as follows:

Sec.  172.800  Purpose and applicability.

* * * * *
    (b) Applicability. Each person who offers for transportation in
commerce or transports in commerce one or more of the following
hazardous materials must develop and adhere to a transportation
security plan for hazardous materials that conforms to the requirements
of this subpart:
    (1) Any quantity of a Division 1.1, 1.2, or 1.3 material;
    (2) Any quantity of a Division 1.4 material, identified in the
Hazardous Materials Table in Sec.  172.101 of this part with UN
identification numbers UN 0104, UN 0237, UN 0255, UN 0267, UN 0289, UN
0361, UN 0365, UN 0366, UN 0440, UN 0441, UN 0455, UN 0456, and UN
0500;
    (3) Any quantity of a Division 1.5 material;
    (4) 3,000 L (793 gallons) or more in a single packaging of a
Division 2.1 material;
    (5) 3,000 L (793 gallons) or more in a single packaging of a
Division 2.2 material with a subsidiary hazard of 5.1;
    (6) Any quantity of a material poisonous by inhalation, as defined
in Sec.  171.8 of this subchapter;
    (7) 3,000 L (793 gallons) or more in a single packaging of a Class
3 material;
    (8) Any quantity of a desensitized explosive meeting the definition
of a Class 3 or Division 4.1 material;
    (9) 3,000 kg (6,614 lbs.) or more in a single packaging of a
Division 4.2 material meeting the criteria for Packing Group I or II;
    (10) Any quantity of a Division 4.3 material;
    (11) 3,000 L (793 gallons) or more in a single packaging of a
Division 5.1 liquid meeting the criteria for Packing Group I or II;
    (12) 3,000 L (793 gallons) of Division 5.1 perchlorates, ammonium
nitrate, ammonium nitrate fertilizers, or ammonium nitrate emulsions or
suspensions or gels;
    (13) Any quantity of an organic peroxide, Type B, liquid or solid,
temperature controlled;
    (14) Any quantity of a Division 6.1 material meeting the criteria
for Packing Group I;
    (15) 3,000 L (793 gallons) or more in a single packaging of a
Division 6.1

material meeting the criteria for Packing Group II or III;
    (16) A select agent or toxin regulated by the Centers for Disease
Control and Prevention under 42 CFR part 73 or the United States
Department of Agriculture under 9 CFR part 121;
    (17) 3000 A2 in a single package of Class 7 material or
the following radionuclides at the thresholds indicated:

------------------------------------------------------------------------
                                                     Transport security
                   Radionuclide                        threshold (TBq)
------------------------------------------------------------------------
Am-241............................................                   0.6
Au-198............................................                     2
Cd-109............................................                   200
Cf-252............................................                   0.2
Cm-244............................................                   0.5
Co-57.............................................                     7
Co-60.............................................                   0.3
Cs-137............................................                     1
Fe-55.............................................                  8000
Ge-68.............................................                     7
Gd-153............................................                    10
Ir-192............................................                   0.8
Ni-63.............................................                   600
Pd-103............................................                   900
Pm-147............................................                   400
Po-210............................................                   0.6
Pu-238............................................                   0.6
Pu-239............................................                   0.6
Ra-226............................................                   0.4
Ru-106............................................                     3
Se-75.............................................                     2
Sr-90.............................................                    10
Tl-204............................................                   200
Tm-170............................................                   200
Yb-169............................................                     3
------------------------------------------------------------------------

    For mixtures of radionuclides, determination of whether or not the
transport security radioactivity threshold has been met or exceeded can
be calculated by summing the ratios of activity present for each
radionuclide divided by the transport security threshold for that
radionuclide. If the sum of the fractions is less than 1, then the
radioactivity threshold for the mixture has not been met or exceeded.
This calculation can be made with the formula:
[GRAPHIC] [TIFF OMITTED] TP09SE08.037

Where:

Ai = activity of radionuclide i that is present in a
package (TBq)
Ti = transport security threshold for radionuclide i
(TBq)

    (18) 3,000 L (793 gallons) or more in a single packaging of a Class
8 material meeting the criteria for Packing Group I.
* * * * *
    4.1. In Sec.  172.802, revise paragraph (a) introductory text,
redesignate paragraph (b) as paragraph (c) and revise it, and add new
paragraphs (b) and (d), to read as follows:

Sec.  172.802  Components of a security plan.

    (a) The security plan must include an assessment of transportation
security risks for shipments of the hazardous materials listed in Sec.
172.800, including site-specific or location-specific security risks,
and appropriate measures to address the assessed risks. Specific
measures put into place by the plan may vary commensurate with the
level of threat at a particular time. At a minimum, a security plan
must include the following elements:
* * * * *
    (b) The security plan must also include the following:
    (1) Identification by job title of the senior management official
responsible for overall development and implementation of the security
plan;
    (2) Security duties for each position or department that is
responsible for implementing the plan or a portion of the plan and the
process of notifying employees when specific elements of the security
plan must be implemented; and
    (3) A plan for training hazmat employees in accordance with Sec.
172.704 (a)(4) and (a)(5) of this part.
    (c) The security plan, including the transportation security risk
assessment developed in accordance with paragraph (a) of this section,
must be in writing and must be retained for as long as it remains in
effect. The security plan must be reviewed at least annually and
revised and/or updated as necessary to reflect changing circumstances.
The most recent version of the security plan, or portions thereof, must
be available to the employees who are responsible for implementing it,
consistent with personnel security clearance or background
investigation restrictions and a demonstrated need to know. When the
security plan is updated or revised, all employees responsible for
implementing it must be notified and all copies of the plan must be
maintained as of the date of the most recent revision.
    (d) Each person required to develop and implement a security plan
in accordance with this subpart must maintain a copy of the security
plan (or an electronic image thereof) that is accessible at, or
through, its principal place of business and must make the security
plan available upon request, at a reasonable time and location, to an
authorized official of the Department of Transportation or the
Department of Homeland Security.

    Issued in Washington, DC on September 3, 2008, under authority
delegated in 49 CFR part 106.
Theodore L. Willke,
Associate Administrator for Hazardous Materials Safety.
[FR Doc. E8-20856 Filed 9-8-08; 8:45 am]

BILLING CODE 4910-60-P