[Federal Register Volume 83, Number 180 (Monday, September 17, 2018)]
[Notices]
[Pages 47000-47001]
[FR Doc No: 2018-20052]

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DEPARTMENT OF TRANSPORTATION

Federal Railroad Administration

[Docket No. FRA-2017-0002-N-8]

Proposed Agency Information Collection Activities; Comment
Request

AGENCY: Federal Railroad Administration (FRA), U.S. Department of
Transportation (DOT).

ACTION: Notice of information collection; request for comment.

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SUMMARY: Under the Paperwork Reduction Act of 1995 (PRA) and its
implementing regulations, FRA seeks approval of the new Information
Collection Request (ICR) abstracted below. Before submitting this ICR
to the Office of Management and Budget (OMB) for approval, FRA is
soliciting public comment on specific aspects of the activities
identified below.

DATES: Interested persons are invited to submit comments on or before
November 16, 2018.

ADDRESSES: Submit written comments on the ICR activities by mail to
either: Mr. Robert Brogan, Information Collection Clearance Officer,
Office of Railroad Safety, Regulatory Analysis Division, RRS-21,
Federal Railroad Administration, 1200 New Jersey Avenue SE, Room W33-
497, Washington, DC 20590; or Ms. Kim Toone, Information Collection
Clearance Officer, Office of Information Technology, RAD-20, Federal
Railroad Administration, 1200 New Jersey Avenue SE, Room W34-212,
Washington, DC 20590. Commenters requesting FRA to acknowledge receipt
of their respective comments must include a self-addressed stamped
postcard stating, ``Comments on OMB Control Number 2130--NEW,'' and
should also include the title of the ICR. Alternatively, comments may
be faxed to<PHONE_NUMBER> or<PHONE_NUMBER>, or emailed to Mr. Brogan
at [email protected], or Ms. Toone at [email protected]. Please
refer to the assigned OMB control number and title in any
correspondence submitted. FRA will summarize comments received in
response to this notice in a subsequent notice and include them in its
information collection submission to OMB for approval.

FOR FURTHER INFORMATION CONTACT: Mr. Robert Brogan, Information
Collection Clearance Officer, Office of Railroad Safety, Regulatory
Analysis Division, RRS-21, Federal Railroad Administration, 1200 New
Jersey Avenue SE, Room W33-497, Washington, DC 20590 (telephone: (202)
493-6292) or Ms. Kim Toone, Information Collection Clearance Officer,
Office of Information Technology, RAD-20, Federal Railroad
Administration, 1200 New Jersey Avenue SE, Room W34-212, Washington, DC
20590 (telephone:<PHONE_NUMBER>).

SUPPLEMENTARY INFORMATION: The PRA, 44 U.S.C. 3501-3520, and its
implementing regulations, 5 CFR part 1320, require Federal agencies to
provide 60-days' notice to the public to allow comment on information
collection activities before seeking OMB approval of the activities.
See 44 U.S.C. 3506, 3507; 5 CFR 1320.8 through 1320.12. Specifically,
FRA invites interested parties to comment on the following ICR
regarding: (1) Whether the information collection activities are
necessary for FRA to properly execute its functions, including whether
the activities will have practical utility; (2) the accuracy of FRA's
estimates of the burden of the information collection activities,
including the validity of the methodology and assumptions used to
determine the estimates; (3) ways for FRA to enhance the quality,
utility, and clarity of the information being collected; and (4) ways
for FRA to minimize the burden of information

collection activities on the public, including the use of automated
collection techniques or other forms of information technology. See 44
U.S.C. 3506(c)(2)(A); 5 CFR 1320.8(d)(1). FRA believes that soliciting
public comment may reduce the administrative and paperwork burdens
associated with the collection of information that Federal regulations
mandate. See 44 U.S.C. 3501.
    The summary below describes the ICR that FRA will submit for OMB
clearance as the PRA requires:
    Title: Driver Awareness of Emergency Notification System (ENS)
Signage at Highway-Rail Grade Crossings.
    OMB Control Number: 2130--NEW.
    Abstract: FRA is interested in understanding more about drivers'
awareness and understanding of the ENS signs posted at highway-rail
grade crossings. ENS signs are placed at crossings so that if a driver
encounters a malfunctioning crossing or an unsafe condition at a
crossing the driver can call the number on the sign and use the posted
crossing identification number to report the issue. If a driver were to
become stuck on the tracks, the driver can also call the phone number
displayed on the ENS sign to notify the railroad. This would help the
railroad slow or stop any oncoming train and dispatch individuals who
could help safely remove the stuck vehicle. Drivers may also choose to
call the ENS number if they believe the crossing signage is damaged or
obstructed. The study will help shed light on how drivers react when
crossing infrastructure appears to be malfunctioning or when they
become stuck on or near the crossing. This study will pay particular
attention to whether drivers look for or attempt to make use of the
information on the ENS sign.
    The proposed study will use the FRA Driving Simulator, housed at
the Volpe National Transportation System Center, to study driver
behavior, including drivers' potential interaction with the ENS
signage, at a variety of gate types and ENS sign orientations.
    Participants will be asked to drive through a variety of scenarios
to understand their behaviors under certain circumstances. The data
collected in this portion will include:
    a. Information on the vehicle driver's behavior to determine what a
driver does and where the driver looks when at a crossing equipped with
a functioning warning system;
    b. information on the vehicle driver's behavior to determine how a
driver responds to a malfunctioning crossing gate (e.g., violated
safety signals, turned around and found another route);
    c. information on a driver's eye fixation locations to determine
whether the driver notices an ENS sign or if the driver's eye fixates
long enough to read it, when crossing warning systems are functioning
properly or malfunctioning;
    d. information on a driver's response to an ENS sign to determine
whether the driver would use the information on the sign to address the
issue; and
    e. information on a driver's response to an ENS sign to determine
whether the driver would use the information on the sign if the driver
becomes stuck on the tracks.
    This study will evaluate each participant's awareness of the ENS
sign and the purpose it serves as well as the participant's response to
various functioning and malfunctioning highway-rail grade crossing
warning systems.
    Type of Request: Approval of a new collection of information.
    Affected Public: Individuals.
    Form(s): N/A.
    Respondent Universe: 100 individual volunteer drivers.
    Frequency of Submission: One-time.

                                                Reporting Burden
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                                                                                Average time
                 Form                      Respondent universe     Total annual    per response    Total annual
                                                                     responses        (hours)      burden hours
----------------------------------------------------------------------------------------------------------------
Oral Interviews.......................  100 Volunteer Drivers...             100               1             100
----------------------------------------------------------------------------------------------------------------

    Total Estimated Annual Responses: 100.
    Total Estimated Annual Burden: 100 hours.
    Under 44 U.S.C. 3507(a) and 5 CFR 1320.5(b) and 1320.8(b)(3)(vi),
FRA informs all interested parties that it may not conduct or sponsor,
and a respondent is not required to respond to, a collection of
information unless it displays a currently valid OMB control number.

    Authority: 44 U.S.C. 3501-3520.

Juan D. Reyes III,
Chief Counsel.
[FR Doc. 2018-20052 Filed 9-14-18; 8:45 am]
 BILLING CODE 4910-06-P


[Federal Register: September 28, 2006 (Volume 71, Number 188)]
[Rules and Regulations]
[Page 56884-56893]
[DOCID:fr28se06-14]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 82

[EPA-HQ-OAR-2003-0118; FRL-8223-9]
RIN 2060-AG12

Protection of Stratospheric Ozone: Notice 21 for Significant New
Alternatives Policy Program

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of Acceptability.

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SUMMARY: This Notice of Acceptability expands the list of acceptable
substitutes for ozone-depleting substances (ODS) under the U.S.
Environmental Protection Agency's (EPA) Significant New Alternatives
Policy (SNAP) program. The substitutes are for use in the following
sectors: refrigeration and air conditioning, foam blowing, cleaning
solvents, aerosols, and sterilants. The determinations concern new
substitutes.

DATES: This notice of acceptability is effective on September 28, 2006.

ADDRESSES: EPA has established a docket for this action under Docket ID
No. EPA-HQ-OAR-2003-0118 (continuation of Air Docket A-91-42). All
electronic documents in the docket are listed in the index at http://www.regulations.gov.
 Although listed in the index, some information is

not publicly available, i.e., Confidential Business Information (CBI)
or other information whose disclosure is restricted by statute.
Publicly available docket materials are available either electronically
at http://www.regulations.gov or in hard copy at the EPA Air Docket (No. A-91-

42), EPA/DC, EPA West, Room B102, 1301 Constitution Ave., NW.,
Washington, DC. The Public Reading Room is open from 8:30 a.m. to 4:30
p.m., Monday through Friday, excluding legal holidays. The telephone
number for the Public Reading Room is<PHONE_NUMBER>, and the telephone
number for the Air Docket is<PHONE_NUMBER>.

FOR FURTHER INFORMATION CONTACT: Margaret Sheppard by telephone at
(202) 343-9163, by facsimile at<PHONE_NUMBER>, by e-mail at
<EMAIL_ADDRESS>or by mail at U.S. Environmental Protection

Agency, Mail Code 6205J, 1200 Pennsylvania Avenue, NW., Washington, DC
20460. Overnight or courier deliveries should be sent to the office
location at 1310 L Street, NW., 8th floor, Washington, DC, 20005.
    For more information on the Agency's process for administering the
SNAP program or criteria for evaluation of substitutes, refer to the
original SNAP rulemaking published in the Federal Register on March 18,
1994 (59 FR 13044). Notices and rulemakings under the SNAP program, as
well as other EPA publications on protection of stratospheric ozone,
are available at EPA's Ozone Depletion World Wide Web site at http://www.epa.gov/ozone/ including the SNAP portion at http://www.epa.gov/

ozone/snap/.

SUPPLEMENTARY INFORMATION:

I. Listing of New Acceptable Substitutes
    A. Refrigeration and Air Conditioning
    B. Foam Blowing
    C. Cleaning Solvents
    D. Aerosols
    E. Sterilants
II. Section 612 Program
    A. Statutory Requirements
    B. Regulatory History
Appendix A--Summary of Acceptable Decisions

I. Listing of New Acceptable Substitutes

    This section presents EPA's most recent acceptable listing
decisions for substitutes in the following industrial sectors:
Refrigeration and air conditioning, foam blowing, cleaning solvents,
aerosols and sterilants. For copies of the full list of ODS substitutes
in all industrial sectors, visit EPA's Ozone Depletion Web site at
http://www.epa.gov/ozone/snap/lists/index.html.

    The Agency has determined that the Clean Air Act does not authorize
EPA to regulate for global climate change purposes (Memo to Acting
Administrator, Marianne L. Horinko from Robert E. Fabricant. 2003.
Subject: EPA's Authority to Impose Mandatory Controls to Address Global
Climate Change under the Clean Air Act). The Agency has not yet
concluded how this determination would affect its consideration of the
global warming potential of substitutes under the SNAP program.
Regardless, for the substitutes considered here, the global warming
potential of the alternatives was not a determinative factor in EPA's
acceptable subject to use conditions determination.
    The sections below discuss each substitute listing in detail.
Appendix A contains a table summarizing today's listing decisions for
new substitutes. The statements in the ``Further Information'' column
in the table provide additional information, but are not legally
binding under section 612 of the Clean Air Act. In addition, the
``further information'' may not be a comprehensive list of other legal
obligations you may need to meet when using the substitute. Although
you are not required to follow recommendations in the ``further
information'' column of the table to use a substitute, EPA strongly
encourages you to apply the information when using these substitutes.
In many instances, the information simply refers to standard operating
practices in existing industry and/or building-code standards. Thus,
many of these statements, if adopted, would not require significant
changes to existing operating practices.
    You can find submissions to EPA for the use of the substitutes
listed in this document and other materials supporting the decisions in
this action

in docket EPA-HQ-OAR-2003-0118 at http://www.regulations.gov.

A. Refrigeration and Air Conditioning

1. R-421A
    EPA's decision:
    R-421A [R-125/134a (58.0/42.0)] is acceptable for use in new and
retrofit equipment as a substitute for hydrochlorofluorocarbon (HCFC)-
22 in:
     Chillers (centrifugal, screw, reciprocating);
     Industrial process refrigeration;
     Industrial process air conditioning;
     Retail food refrigeration;
     Cold storage warehouses;
     Refrigerated transport;
     Commercial ice machines;
     Ice skating rinks;
     Household refrigerators and freezers;
     Vending machines;
     Water coolers;
     Residential dehumidifiers; and
     Household and light commercial air conditioning and heat
pumps.
    R-421A is a blend of 58% by weight hydrofluorocarbon (HFC)-125
(pentafluoroethane, CAS ID 354-33-6), and 42% by weight HFC-
134a (1,1,1,2-teterafluoroethane, CAS ID 811-97-2). A common
trade name for this refrigerant is Choice R421A. You may find the
submission under Docket item EPA-HQ-OAR-2003-0118-0142 at
http://www.regulations.gov.

    Environmental information: The ozone depletion potential (ODP) of
R-421A is zero. The contribution of this blend to greenhouse gas
emissions will be minimized through the implementation of the venting
prohibition under section 608(c)(2) of the Clean Air Act (see 40 CFR,
part 82, subpart F). This section and EPA's implementing regulations
prohibit venting or release of substitutes for class I or class II ODSs
used in refrigeration and air conditioning and require proper handling,
such as recycling or recovery, and disposal of these substances.
    HFC-125 and HFC-134a are excluded from the definition of volatile
organic compound (VOC) under Clean Air Act regulations (see 40 CFR
51.100(s)) addressing the development of State implementation plans
(SIPs) to attain and maintain the national ambient air quality
standards.
    Flammability information: Neither component of this blend is
flammable.
    Toxicity and exposure data: HFC-125 and HFC-134a have 8 hour/day,
40 hour/week workplace environmental exposure limits (WEELs) of 1000
ppm established by the American Industrial Hygiene Association (AIHA).
EPA recommends that users follow all requirements and recommendations
specified in the Material Safety Data Sheet (MSDS) for the blend and
the individual components and other safety precautions common in the
refrigeration and air conditioning industry. EPA also recommends that
users of R-421A adhere to the AIHA's WEELs.
    Comparison to other refrigerants: R-421A is not an ozone depleter
in contrast to HCFC-22 which it replaces. We find that R-421A is
acceptable because it does not pose a greater overall risk to public
health and the environment in the end uses listed above.
2. R-421B
    EPA's decision:
    R-421B [R-125/134a (85.0/15.0)] is acceptable for use in new and
retrofit equipment as a substitute for HCFC-22, R-502, and
chlorofluorocarbon (CFC)-12 in:
     Industrial process refrigeration;
     Retail food refrigeration;
     Cold storage warehouses;
     Refrigerated transport;
     Commercial ice machines;
     Ice skating rinks;
     Household refrigerators and freezers.
    R-421B is a blend of 85.0% by weight HFC-125 (pentafluoroethane,
CAS ID 354-33-6) and 15.0% by weight HFC-134a (1,1,1,2-
tetrafluoroethane, CAS ID 811-97-2). A common trade name for
this refrigerant is Choice R421B. You may find the submission under
Docket item EPA-HQ-OAR-2003-0118-0143 at http://www.regulations.gov.

    Environmental information: The ODP of R-421B is zero. For
environmental information on the components of this blend see the
section on environmental information above for R-421A.
    Flammability information: Neither component of this blend is
flammable.
    Toxicity and exposure data: See the section above on toxicity and
exposure data above for R-421A.
    Comparison to other refrigerants: R-421B is not an ozone depleter;
thus, it poses a lower risk for ozone depletion than the ODSs it
replaces. Flammability and toxicity risks are low, as discussed above.
We find that R-421B is acceptable because it does not pose a greater
overall risk to public health and the environment in the end uses
listed above.
3. R-422D
    EPA's decision:
    R-422D [R-125/134a/600a (65.1/31.5/3.4)] is acceptable for use in
new and retrofit equipment as a substitute for HCFC-22 in:
     Chillers (centrifugal, screw, reciprocating);
     Industrial process refrigeration;
     Industrial process air conditioning;
     Retail food refrigeration;
     Cold storage warehouses;
     Refrigerated transport;
     Commercial ice machines;
     Ice skating rinks;
     Household refrigerators and freezers;
     Vending machines;
     Water coolers;
     Residential dehumidifiers;
     Non-mechanical heat transfer;
     Household and light commercial air conditioning and heat
pumps; and
     Motor vehicle air conditioning (buses and passenger trains
only).
    R-422D is a blend of 65.1% by weight HFC-125 (pentafluoroethane,
CAS ID 354-33-6), 31.5% by weight HFC-134a (1,1,1,2-
tetrafluoroethane, CAS ID 811-97-2), and 3.4% by weight R-600a
(isobutane, 2-methyl propane, CAS ID 75-28-5). A common trade
name for this refrigerant is ISCEON MO29. You may find the submission
under Docket item EPA-HQ-OAR-2003-0118-0121 at http://www.regulations.gov.

    Environmental information: The ODP of R-422D is zero. For
environmental information on HFC-125 and HFC-134a, see the section on
environmental information above for R-421A.
    The contribution of this blend to greenhouse gas emissions will be
minimized through the implementation of the venting prohibition under
section 608(c)(2) of the Clean Air Act (see 40 CFR, part 82, subpart
F). This section and EPA's implementing regulations prohibit venting or
release of substitutes for class I or class II ODSs used in
refrigeration and air conditioning and require proper handling, such as
recycling or recovery, and disposal of these substances.
    Isobutane is a VOC under Clean Air Act regulations concerning the
development of SIPs to attain and maintain the national ambient air
quality standards. 40 CFR 51.100(s).
    Flammability information: While one component of the blend,
isobutane, is flammable, the blend as formulated and under worst-case
fractionated formulation scenarios, is not flammable.
    Toxicity and exposure data: For information on the workplace
exposure limits for HFC-125 and HFC-134a, see the section on toxicity
and exposure data above for R-421A. Isobutane has an 8 hour/day, 40
hour/week threshold limit value (TLV) established by the American
Conference of Governmental Industrial Hygienists (ACGIH) of 1000 ppm.
EPA recommends that users follow all requirements and recommendations
specified in the MSDS for the blend and the individual

components and other safety precautions common in the refrigeration and
air conditioning industry. EPA also recommends that users of R-422D
adhere to the AIHA's WEELs and the ACGIH's TLV.
    Comparison to other refrigerants: R-422D is not an ozone depleter
in contrast to HCFC-22 which it replaces. Flammability and toxicity
risks are low, as discussed above. Thus, we find that R-422D is
acceptable because it does not pose a greater overall risk to public
health and the environment in the end uses listed above.
4. Formulation of RS-24 Changed
    Refrigerant Solutions Ltd. (formerly Refrigerant Products Ltd.) has
notified EPA that it is changing the composition of RS-24. On December
20, 2002 (67 FR 77927), EPA found the original formulation of RS-24
acceptable for a variety of end-uses. The composition of the old
formulation was claimed as confidential business information (CBI). We
will identify the old composition as ``RS-24 (2002 composition)'' and
will continue to find it acceptable. EPA's decision on the new
formulation is discussed below in the decision for R-426A.
5. R-426A
    EPA's decision:
    R-426A [R-125/134a/600/601a (5.1/93.0/1.3/0.6)] is acceptable for
use in new and retrofit equipment as a substitute for CFC-12 in:
     Industrial process refrigeration;
     Industrial process air conditioning;
     Retail food refrigeration;
     Cold storage warehouses;
     Refrigerated transport;
     Commercial ice machines;
     Ice skating rinks;
     Vending machines;
     Water coolers;
     Household refrigerators and freezers; and
     Residential dehumidifiers.
    R-426A [R-125/134a/600/601a (5.1/93.0/1.3/0.6)] is acceptable,
subject to use conditions, for use in new and retrofit equipment as a
substitute for CFC-12 in the following end use:
     Motor vehicle air conditioning.
    Conditions for use in motor vehicle air conditioning systems.
Regulations regarding recycling and prohibiting venting issued under
section 609 of the Clean Air Act apply to this blend (subpart B of 40
CFR part 82).
    On October 16, 1996, (61 FR 54029), EPA promulgated a final rule
that established certain conditions on the use of any refrigerant used
as a substitute for CFC-12 in motor vehicle air conditioning systems
(Appendix D of subpart G of 40 CFR part 82). That rule provided that
EPA would list new motor vehicle air conditioning system refrigerants
in future notices of acceptability and that these conditions would
apply to any such refrigerant found acceptable. Therefore, the use of
R-426A as a CFC-12 substitute in motor vehicle air conditioning systems
must follow the standard conditions:
     The use of unique fittings designed by the refrigerant
manufacturer;
     The application of a detailed label;
     The removal of the original refrigerant prior to charging
with R-426A; and
     The installation of a high-pressure compressor cutoff
switch on systems equipped with pressure relief devices.
    The October 16, 1996 rule gives full details on these use
conditions.
    You must use the following fittings to use R-426A in motor vehicle
air conditioning systems:

----------------------------------------------------------------------------------------------------------------
                                                   Diameter                                             Thread
                  Fitting type                     (inches)        Thread pitch (threads/inch)        direction
----------------------------------------------------------------------------------------------------------------
Low-side service port..........................               Quick-connect
High-side service port.........................               Quick-connect
Large containers (>20 lb.).....................               Quick-connect
Small cans.....................................               Quick-connect
----------------------------------------------------------------------------------------------------------------

    The quick-connect fittings have been reviewed and found to be
sufficiently different from HFC-134a and FRIGC FR-12 quick-connect
fittings to be considered unique. The labels will have a gold
background and black text. These are the same quick-connect fittings
and same label as previously approved for RS-24 (2002 composition);
however, the manufacturer of R-426A has stated that RS-24 (2002
composition) has not been and will not be sold for use in motor vehicle
air conditioners.
    R-426A is a blend of 5.1% by weight HFC-125 (pentafluoroethane, CAS
ID 354-33-6), 93.0% by weight HFC-134a (1,1,1,2-
tetrafluoroethane, CAS ID 811-97-2), 1.3% by weight R-600 (n-
butane, CAS ID 106-97-8), and 0.6% by weight R-601a
(isopentane, 2-methylbutane, CAS ID 78-78-4). A common trade
name for this refrigerant is RS-24. This is a new formulation for RS-
24, different from the one that EPA previously found acceptable in
several refrigerant end uses (December 20, 2002; 67 FR 77927). You may
find additional information under Docket item EPA-HQ-OAR-2003-0118-0148
at http://www.regulations.gov.

    Environmental information: The ODP of R-426A is zero. For
environmental information on HFC-125 and HFC-134a see the section on
environmental information above for R-421A.
    The contribution of this blend to greenhouse gas emissions will be
minimized through the implementation of the venting prohibition under
section 608(c)(2) of the Clean Air Act (see 40 CFR, part 82, subpart
F). This section and EPA's implementing regulations prohibit venting or
release of substitutes for class I or class II ODSs used in
refrigeration and air conditioning and require proper handling, such as
recycling or recovery, and disposal of these substances.
    Isopentane and n-butane are VOCs under Clean Air Act regulations
concerning the development of SIPs to attain and maintain the national
ambient air quality standards. 40 CFR 51.100(s).
    Flammability information: While two of the blend components, n-
butane and isopentane, are flammable, the blend as formulated, and
under worst-case fractionated formulation scenarios, is not flammable.
    Toxicity and exposure data: HFC-125 and HFC-134a have 8 hour/day,
40 hour/week WEELs of 1000 ppm established by the AIHA. The other
components, n-butane and isopentane, have 8 hour/day, 40 hour/week
threshold limit values (TLVs) established by the American Conference of
Governmental Industrial Hygienists (ACGIH) of 800 ppm and 600 ppm,
respectively. EPA recommends that users follow all requirements and
recommendations specified in the MSDS for the blend and the individual
components and other safety precautions common in the refrigeration and
air conditioning industry. EPA also recommends that users of R-426A
adhere to the AIHA's WEELs and the ACGIH's TLV.

    Comparison to other refrigerants: R-426A is not an ozone depleter
in contrast to CFC-12 which it replaces. Flammability and toxicity
risks are low, as discussed above. Thus, we find that R-426A is
acceptable because it does not pose a greater overall risk to public
health and the environment in the end uses and applications listed
above.
6. Formulation of RS-44 Changed
    Refrigerant Solutions Ltd. (formerly Refrigerant Products Ltd.) has
notified EPA that it is changing the composition of RS-44. On August
21, 2003 (68 FR 50533), EPA found the original formulation of RS-44
acceptable for a variety of end-uses. The composition of the old
formulation was claimed as confidential business information (CBI). We
will continue to identify the blend as ``RS-44 (2003 composition)'' and
will continue to find it acceptable. EPA's decision on the new
formulation is discussed below in the decision for R-424A.
7. R-424A
    EPA's decision:
    R-424A [R-125/134a/600a/600/601a] (50.5/47.0/0.9/1.0/0.6)] is
acceptable for use in new and retrofit equipment as a substitute for
HCFC-22 in:
     Chillers (centrifugal, screw, reciprocating);
     Industrial process refrigeration;
     Industrial process air conditioning;
     Retail food refrigeration;
     Cold storage warehouses;
     Refrigerated transport;
     Commercial ice machines;
     Ice skating rinks;
     Household refrigerators and freezers;
     Residential dehumidifiers; and
     Household and light commercial air conditioning and heat
pumps.
    R-424A is a blend of 50.5% by weight HFC-125 (pentafluoroethane,
CAS ID  354-33-6), 47.0% by weight HFC-134a (1,1,1,2-
tetrafluoroethane, CAS ID 811-97-2), 0.9% by weight R-600a
(isobutane, 2-methyl propane, CAS ID 75-28-5), 1.0% by weight
R-600 (n-butane, CAS ID 106-97-8), and 0.6% by weight R-601a
(isopentane, 2-methylbutane, CAS ID 78-78-4). A common trade
name for this refrigerant is RS-44. This is a new formulation for RS-
44, different from the one that EPA previously found acceptable in
several refrigerant end uses (August 21, 2003; 68 FR 50533). You may
find additional information under Docket item EPA-HQ-OAR-2003-0118-0131
at http://www.regulations.gov.

    Environmental information: The ODP of R-424A is zero. For
environmental information on HFC-125 and HFC-134a, see the section on
environmental information above for R-421A. For environmental
information on R-600 and R-601a, see the section on environmental
information above for R-426A. For environmental information on R-600a,
see the section on environmental information above for R-422D.
    The contribution of this blend to greenhouse gas emissions will be
minimized through the implementation of the venting prohibition under
section 608(c)(2) of the Clean Air Act (see 40 CFR, part 82, subpart
F). This section and EPA's implementing regulations prohibit venting or
release of substitutes for class I or class II ODSs used in
refrigeration and air conditioning and require proper handling, such as
recycling or recovery, and disposal of these substances.
    Isobutane, n-butane, and isopentane are VOCs under Clean Air Act
regulations concerning the development of SIPs to attain and maintain
the national ambient air quality standards. 40 CFR 51.100(s).
    Flammability information: While three components of the blend are
flammable, the blend as formulated, and under worst-case fractionated
formulation scenarios, is not flammable.
    Toxicity and exposure data: For information on the workplace
exposure limits for the components of this blend see the toxicity and
exposure data sections above for R-421A, R-422D, and R-426A. EPA
recommends that users follow all requirements and recommendations
specified in the MSDS for the blend and the individual components and
other safety precautions common in the refrigeration and air
conditioning industry. EPA also recommends that users of R-424A adhere
to the AIHA's WEELs and the ACGIH's TLV.
    Comparison to other refrigerants: R-424A is not an ozone depleter
in contrast to HCFC-22 which it replaces. Flammability and toxicity
risks are low, as discussed above. Thus, we find that R-424A is
acceptable because it does not pose a greater overall risk to public
health and the environment in the end uses listed above.
8. R-407D
    EPA's decision:
    R-407D [R-32/125/134a (15.0/15.0/70.0)] is acceptable for use in
new and retrofit equipment as a substitute for CFC-12 in:
     Refrigerated transport.
    R-407D is a blend of 15.0% by weight HFC-32 (difluoromethane, CAS
ID 75-10-5), 15.0% by weight HFC-125 (pentafluoroethane, CAS
ID  354-33-6), and 70.0% by weight HFC-134a (1,1,1,2-
tetrafluoroethane, CAS ID 811-97-2).
    Environmental information: The ODP of R-407D is zero. For
environmental information on HFC-125 and HFC-134a, see the section on
environmental information above for R-421A.
    The contribution of this blend to greenhouse gas emissions will be
minimized through the implementation of the venting prohibition under
section 608(c)(2) of the Clean Air Act (see 40 CFR, part 82, subpart
F). This section and EPA's implementing regulations prohibit venting or
release of substitutes for class I or class II ODSs used in
refrigeration and air conditioning and require proper handling, such as
recycling or recovery, and disposal of these substances. HFC-32 is
excluded from the definition of volatile organic compound (VOC) under
Clean Air Act regulations (see 40 CFR 51.100(s)) addressing the
development of State implementation plans (SIPs) to attain and maintain
the national ambient air quality standards.
    Flammability information: While one component of the blend, HFC-32,
is flammable, the blend as formulated and under worst case fractionated
formulation scenarios is not flammable.
    Toxicity and exposure data: For information on the workplace
exposure limits for HFC-125 and HFC-134a, see the section on toxicity
and exposure data above for R-421A. HFC-32 has an 8 hour/day, 40 hour/
week workplace environmental exposure limits (WEELs) of 1000 ppm
established by the American Industrial Hygiene Association (AIHA). EPA
recommends that users follow all requirements and recommendations
specified in the Material Safety Data Sheet (MSDS) for the blend and
the individual components and other safety precautions common in the
refrigeration and air conditioning industry. EPA also recommends that
users of R-407D adhere to the AIHA's WEELs.
    Comparison to other refrigerants: R-407D is not an ozone depleter
in contrast to CFC-12 which it replaces. Flammability and toxicity
risks are low, as discussed above. Thus, we find that R-407D is
acceptable because it does not pose a greater overall risk to public
health and the environment in the end uses listed above.

B. Foam Blowing

1. EcomateTM
    EPA's decision:
    EcomateTM is acceptable as a substitute for CFCs and
HCFCs in the following end uses:

     Polystyrene, Extruded Boardstock & Billet;
     Phenolic Insulation Board & Bunstock;
     Flexible Polyurethane;
     Polyurethane, Extruded Sheet; and
     Polyolefin.
    EPA previously found Ecomate acceptable for a number of foam
blowing end uses in Notice 18, August 21, 2003 (68 FR 50533) and Notice
19, October 1, 2004 (69 FR 58903).
    The submitter, Foam Supplies Inc., claims that the composition of
EcomateTM is confidential business information (see docket
A-91-42, item VI-D-296).
    Environmental information: EcomateTM has no ODP. Users
should be aware that EcomateTM is not excluded from the
definition of volatile organic compound (VOC) under Clean Air Act
regulations addressing the development of State implementation plans
(SIPs) to attain and maintain the national ambient air quality
standards. 40 CFR 51.100(s). For more information, refer to the
manufacturer of EcomateTM, EPA regulations, and your state
or local air quality agency. Also, because EcomateTM is
considered hazardous, spills and disposal should be handled in
accordance with requirements of the Resource Conservation and Recovery
Act (RCRA).
    Flammability information: EcomateTM is flammable and
should be handled with proper precautions. Use of EcomateTM
will require safe handling and shipping as prescribed by the
Occupational Safety and Health Administration (OSHA) and the Department
of Transportation (for example, using personal safety equipment and
following requirements for shipping hazardous materials at 49 CFR parts
170 through 173). However, when blended with fire retardant, the
flammability of EcomateTM can be reduced to make a
formulation that is either combustible or non-flammable (refer to the
manufacturer of EcomateTM for more information).
    Toxicity and exposure data: EcomateTM should be handled
with proper precautions. EPA anticipates that EcomateTM will
be used consistent with the recommendations specified in the
manufacturers' Material Safety Data Sheets (MSDSs) (e.g., use goggles
and neoprene gloves when handling; handle in a fume hood or with
adequate ventilation; if the workplace exposure limit is exceeded, use
a NIOSH/MSHA approved air supplied respirator in the absence of proper
environmental control). OSHA established a permissible exposure limit
for the main component of EcomateTM of 100 ppm for a time-
weighted average over an eight-hour work shift. The ACGIH recommends a
TLV of 100 ppm on an eight-hour time-weighted average and a short-term
exposure limit of 150 ppm for a 15-minute time-weighted average for the
main component of EcomateTM.
    Comparison to other foam blowing agents: EcomateTM is
not an ozone depleter in contrast to the CFCs and HCFCs it replaces.
Although EcomateTM is flammable, we find that the
manufacturer's recommended precautions for safety are sufficient so
that the risks will not be significantly higher than for other
available or potentially available substitutes in this end use. Meeting
Federal exposure requirements allows EcomateTM to be used
with no greater risk of toxicity than for other available or
potentially available substitutes in this end use. Thus, we find that
EcomateTM is acceptable because there are no other
substitutes that are currently or potentially available that provide a
substantially lower risk to public health and the environment in the
end uses listed above. You may find additional information under Docket
item EPA-HQ-OAR-2003-0118-0063 at http://www.regulations.gov.

C. Cleaning Solvents

1. Mini-Max Cleaner[supreg]
    EPA's decision:
    The Mini-Max Cleaner[supreg] is acceptable as a substitute for CFC-
113, methyl chloroform, and HCFCs in the following end-uses:
     Metal cleaning;
     Electronics cleaning; and
     Precision cleaning.
    Mini-Max Cleaner[supreg] is a cleaning device that creates super-
heated, high pressure steam vapor. A relatively small amount of water
is used, thus minimizing the amount of waste water that is produced.
You may find the submission under Docket item EPA-HQ-OAR-2003-0118-0120
and -0124 at http://www.regulations.gov.

    Environmental information: Mini-Max Cleaner[reg] does not create
emissions and its ODP is zero. The relatively small amount of water
used minimizes indirect impacts on the atmosphere and on water.
    Flammability information: The device is not flammable. There is a
potential explosion hazard when the Mini-Max[reg] Cleaner is used in
the presence of VOCs or where liquids with a flash point are added to
the water. EPA recommends that users follow all requirements and
recommendations specified in the user safety manual to minimize any
risks.
    Toxicity and exposure data: The Mini-Max Cleaner[reg] introduces no
chemicals of concern. The resulting waste should be handled with safety
precautions common in the solvent cleaning industry because the removed
soils and chemicals may be toxic.
    Comparison to other cleaning solvents: The Mini-Max Cleaner[supreg]
is not an ozone depleter. Flammability and toxicity risks are
negligible, as discussed above. Thus, we find that the Mini-Max
Cleaner[supreg] is acceptable because it does not pose a greater risk
to public health and the environment in the end uses listed. For more
information refer to the manufacturer of the Mini-Max Cleaner[supreg].

D. Aerosols

1. Mini-Max Cleaner[supreg]
    EPA's decision:
    The Mini-Max Cleaner[supreg] is acceptable as a substitute for CFC-
113, methyl chloroform, and HCFCs in aerosol solvents.
    Environmental information: For further information about the Mini-
Max Cleaner[supreg], see above in section B.1 on solvent cleaning.
    Flammability information: For further information about the Mini-
Max Cleaner[supreg], see above in section B.1 on solvent cleaning.
    Toxicity and exposure data: For further information about the Mini-
Max Cleaner[supreg], see above in section B.1 on solvent cleaning.
    Comparison to other aerosol solvents: The Mini-Max Cleaner[supreg]
is not an ozone depleter. Flammability and toxicity risks are
negligible, as discussed above. Thus, we find that the Mini-Max
Cleaner[supreg] is acceptable because it does not pose a greater risk
to public health and the environment in the end use listed.

E. Sterilants

1. Mini-Max Cleaner[supreg]
    EPA's decision:
    The Mini-Max Cleaner[supreg] is acceptable as a substitute for CFC-
12, HCFC-22, HCFC-124 and blends thereof in the sterilization sector.
    EPA previously found steam acceptable as a sterilant under 59
FR13044, March 18, 1994. You may find the submission under Docket items
EPA-HQ-OAR-2003-0118-0120 and -0124 at http://www.regulations.gov.

    Environmental information: For further information about the Mini-
Max Cleaner[supreg], see above in section B.1 on solvent cleaning.
    Flammability information: For further information about the Mini-
Max Cleaner[supreg], see above in section B.1 on solvent cleaning.
    Toxicity and exposure: EPA expects users to follow all
recommendations

specified in the user's manual and other safety precautions common in
the medical sterilization industry.
    Comparison to other sterilants: The Mini-Max Cleaner[supreg] is not
an ozone depleter. Flammability risks are negligible, as discussed
above. The toxicity is less than that of ethylene oxide and its blends.
Thus, we find the Mini-Max Cleaner[supreg] acceptable because it does
not pose a greater risk to public health and the environment.

II. Section 612 Program

A. Statutory Requirements

    Section 612 of the Clean Air Act authorizes EPA to develop a
program for evaluating alternatives to ozone-depleting substances. We
refer to this program as the Significant New Alternatives Policy (SNAP)
program. The major provisions of section 612 are:
     Rulemaking--Section 612(c) requires EPA to promulgate
rules making it unlawful to replace any class I (chlorofluorocarbon,
halon, carbon tetrachloride, methyl chloroform, and
hydrobromofluorocarbon) or class II (hydrochlorofluorocarbon) substance
with any substitute that the Administrator determines may present
adverse effects to human health or the environment where the
Administrator has identified an alternative that (1) reduces the
overall risk to human health and the environment, and (2) is currently
or potentially available.
     Listing of Unacceptable/Acceptable Substitutes--Section
612(c) also requires EPA to publish a list of the substitutes
unacceptable for specific uses. We must publish a corresponding list of
acceptable alternatives for specific uses.
     Petition Process--Section 612(d) grants the right to any
person to petition EPA to add a substance to or delete a substance from
the lists published in accordance with section 612(c). The Agency has
90 days to grant or deny a petition. Where the Agency grants the
petition, it must publish the revised lists within an additional six
months.
     90-day Notification--Section 612(e) directs EPA to require
any person who produces a chemical substitute for a class I substance
to notify the Agency not less than 90 days before new or existing
chemicals are introduced into interstate commerce for significant new
uses as substitutes for a class I substance. The producer must also
provide the Agency with the producer's unpublished health and safety
studies on such substitutes.
     Outreach--Section 612(b)(1) states that the Administrator
shall seek to maximize the use of Federal research facilities and
resources to assist users of class I and II substances in identifying
and developing alternatives to the use of such substances in key
commercial applications.
     Clearinghouse--Section 612(b)(4) requires the Agency to
set up a public clearinghouse of alternative chemicals, product
substitutes, and alternative manufacturing processes that are available
for products and manufacturing processes which use class I and II
substances.

B. Regulatory History

    On March 18, 1994, EPA published the final rulemaking (59 FR 13044)
that described the process for administering the SNAP program and
issued our first acceptability lists for substitutes in the major
industrial use sectors. These sectors include:
     Refrigeration and air conditioning;
     Foam blowing;
     Solvents cleaning;
     Fire suppression and explosion protection;
     Sterilants;
     Aerosols;
     Adhesives, coatings and inks; and
     Tobacco expansion.

These sectors comprise the principal industrial sectors that
historically consumed the largest volumes of ozone-depleting compounds.
    As described in this original rule for the SNAP program, EPA does
not believe that rulemaking procedures are required to list
alternatives as acceptable with no limitations. Such listings do not
impose any sanction, nor do they remove any prior license to use a
substance. Therefore, by this notice we are adding substances to the
list of acceptable alternatives without first requesting comment on new
listings.
    However, we do believe that notice-and-comment rulemaking is
required to place any substance on the list of prohibited substitutes,
to list a substance as acceptable only under certain conditions, to
list substances as acceptable only for certain uses, or to remove a
substance from the lists of prohibited or acceptable substitutes. We
publish updates to these lists as separate notices of rulemaking in the
Federal Register.
    The Agency defines a ``substitute'' as any chemical, product
substitute, or alternative manufacturing process, whether existing or
new, intended for use as a replacement for a class I or class II
substance. Anyone who plans to market or produces a substitute for an
ODS in one of the eight major industrial use sectors must provide EPA
with health and safety studies on the substitute at least 90 days
before introducing it into interstate commerce for significant new use
as an alternative. This requirement applies to substitute
manufacturers, but may include importers, formulators, or end-users,
when they are responsible for introducing a substitute into commerce.
    You can find a complete chronology of SNAP decisions and the
appropriate Federal Register citations from the SNAP section of EPA's
Ozone Depletion World Wide Web site at http://www.epa.gov/ozone/snap/chron.html.
 This information is also available from the Air Docket (see

Addresses section above for contact information).

List of Subjects in 40 CFR Part 82

    Environmental protection, Administrative practice and procedure,
Air pollution control, Reporting and recordkeeping requirements.

    Dated: September 19, 2006.
Brian J. McLean,
Director, Office of Atmospheric Programs.

                                   Appendix A: Summary of Acceptable Decisions
----------------------------------------------------------------------------------------------------------------
              End-use                      Substitute               Decision             Further information
----------------------------------------------------------------------------------------------------------------
                                       Refrigeration and Air Conditioning
----------------------------------------------------------------------------------------------------------------
Centrifugal chillers (retrofit and   R-421A (Choice R421A)   Acceptable.
 new).                                as a substitute for
                                      HCFC-22.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-424A (RS-44) as a     Acceptable.
                                      substitute for HCFC-
                                      22.

Screw chillers (retrofit and new)..  R-421A (Choice R421A)   Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-424A (RS-44) as a     Acceptable.
                                      substitute for HCFC-
                                      22.
Reciprocating chillers (retrofit     R-421A (Choice R421A)   Acceptable.
 and new).                            as a substitute for
                                      HCFC-22.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-424A (RS-44) as a     Acceptable.
                                      substitute for HCFC-
                                      22.
Industrial process refrigeration     R-421A (Choice R421A)   Acceptable.
 (retrofit and new).                  as a substitute for
                                      HCFC-22.
                                     R-421B (Choice R421B)   Acceptable.
                                      as a substitute for
                                      HCFC-22, R-502, and
                                      CFC-12.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-426A (RS-24) as a     Acceptable.
                                      substitute for CFC-12.
                                     R-424A (RS-44) as a     Acceptable.
                                      substitute for HCFC-
                                      22.
Industrial process air conditioning  R-421A (Choice R421A)   Acceptable.
 (retrofit and new).                  as a substitute for
                                      HCFC-22.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-426A (RS-24) as a     Acceptable.
                                      substitute for CFC-12.
                                     R-424A (RS-44) as a     Acceptable.
                                      substitute for HCFC-
                                      22.
Retail food refrigeration (retrofit  R-421A (Choice R421A)   Acceptable.
 and new).                            as a substitute for
                                      HCFC-22.
                                     R-421B (Choice R421B)   Acceptable.
                                      as a substitute for
                                      HCFC-22, R-502, and
                                      CFC-12.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-426A (RS-24) as a     Acceptable.
                                      substitute for CFC-12.
                                     R-424A (RS-44) as a     Acceptable.
                                      substitute for HCFC-
                                      22.
Cold storage warehouses (retrofit    R-421A (Choice R421A)   Acceptable.
 and new).                            as a substitute for
                                      HCFC-22.
                                     R-421B (Choice R421B)   Acceptable.
                                      as a substitute for
                                      HCFC-22, R-502, and
                                      CFC-12.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-426A (RS-24) as a     Acceptable.
                                      substitute for CFC-12.
                                     R-424A (RS-44) as a     Acceptable.
                                      substitute for HCFC-
                                      22.
Refrigerated transport (retrofit     R-421A (Choice R421A)   Acceptable.
 and new).                            as a substitute for
                                      HCFC-22.

                                     R-421B (Choice R421B)   Acceptable.
                                      as a substitute for
                                      HCFC-22, R-502, and
                                      CFC-12.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-426A (RS-24) as a     Acceptable.
                                      substitute for CFC-12.
                                     R-424A (RS-44) as a     Acceptable.
                                      substitute for HCFC-
                                      22.
                                     R-407D as a substitute  Acceptable.
                                      for CFC-12.
Commercial ice machines (retrofit    R-421A (Choice R421A)   Acceptable.
 and new).                            as a substitute for
                                      HCFC-22.
                                     R-421B (Choice R421B)   Acceptable.
                                      as a substitute for
                                      HCFC-22, R-502, and
                                      CFC-12.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-426A (RS-24) as a     Acceptable.
                                      substitute for CFC-12.
                                     R-424A (RS-44) as a     Acceptable.
                                      substitute for HCFC-
                                      22.
Ice skating rinks (retrofit and      R-421A (Choice R421A)   Acceptable.
 new).                                as a substitute for
                                      HCFC-22.
                                     R-421B (Choice R421B)   Acceptable.
                                      as a substitute for
                                      HCFC-22, R-502, and
                                      CFC-12.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-426A (RS-24) as a     Acceptable.
                                      substitute for CFC-12.
                                     R-424A (RS-44) as a     Acceptable.
                                      substitute for HCFC-
                                      22.
Household refrigerators and          R-421A (Choice R421A)   Acceptable.
 freezers (retrofit and new).         as a substitute for
                                      HCFC-22.
                                     R-421B (Choice R421B)   Acceptable.
                                      as a substitute for
                                      HCFC-22, R-502, and
                                      CFC-12.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-426A (RS-24) as a     Acceptable.
                                      substitute for CFC-12.
                                     R-424A (RS-44) as a     Acceptable.
                                      substitute for HCFC-
                                      22.
Vending machines (retrofit and new)  R-421A (Choice R421A)   Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-426A (RS-24) as a     Acceptable.
                                      substitute for CFC-12.
Water coolers (retrofit and new)...  R-421A (Choice R421A)   Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-426A (RS-24) as a     Acceptable.
                                      substitute for CFC-12.

Residential dehumidifiers (retrofit  R-421A (Choice R421A)   Acceptable.
 and new).                            as a substitute for
                                      HCFC-22.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-426A (RS-24) as a     Acceptable.
                                      substitute for CFC-12.
                                     R-424A (RS-44) as a     Acceptable.
                                      substitute for HCFC-
                                      22.
Non-mechanical heat transfer         ISCEON MO29 (R-422D)    Acceptable.
 (retrofit and new).                  as a substitute for
                                      HCFC-22.
Household and light commercial air   R-421A (Choice R421A)   Acceptable.
 conditioning and heat pumps          as a substitute for
 (retrofit and new).                  HCFC-22.
                                     ISCEON MO29 (R-422D)    Acceptable.
                                      as a substitute for
                                      HCFC-22.
                                     R-424A (RS-44) as a     Acceptable.
                                      substitute for HCFC-
                                      22.
Motor vehicle air conditioning       ISCEON MO29 (R-422D)    Acceptable.
 (buses and passenger trains only).   as a substitute for
                                      HCFC-22.
Motor vehicle air conditioning.....  R-426A (RS-24) as a     Acceptable subject to   Users must use the unique
                                      substitute for CFC-12.  use conditions.         fittings and label
                                                                                specified by the
                                                                                manufacturer. Use is
                                                                                subject to requirements
                                                                                under Sec.   609 of the
                                                                                Clean Air Act.
----------------------------------------------------------------------------------------------------------------
                                                  Foam Blowing
----------------------------------------------------------------------------------------------------------------
Polystyrene, Extruded Boardstock &   Ecomate TM as a         Acceptable.             OSHA established a
 Billet.                              substitute for CFCs                             permissible exposure limit
                                      and HCFCs.                                      for the main component of
                                                                                Ecomate TM of 100 ppm for
                                                                                a time-weighted average
                                                                                over an eight-hour work
                                                                                shift.
Phenolic Insulation Board &          Ecomate TM as a         Acceptable.             OSHA established a
 Bunstock.                            substitute for CFCs                             permissible exposure limit
                                      and HCFCs.                                      for the main component of
                                                                                Ecomate TM of 100 ppm for
                                                                                a time-weighted average
                                                                                over an eight-hour work
                                                                                shift.
Flexible Polyurethane..............  Ecomate TM as a         Acceptable.             OSHA established a
                                      substitute for CFCs                             permissible exposure limit
                                      and HCFCs.                                      for the main component of
                                                                                Ecomate TM of 100 ppm for
                                                                                a time-weighted average
                                                                                over an eight-hour work
                                                                                shift.
Polyurethane, Extruded Sheet.......  Ecomate TM as a         Acceptable.             OSHA established a
                                      substitute for CFCs                             permissible exposure limit
                                      and HCFCs.                                      for the main component of
                                                                                Ecomate TM of 100 ppm for
                                                                                a time-weighted average
                                                                                over an eight-hour work
                                                                                shift.
Polyolefin.........................  Ecomate TM as a         Acceptable.             OSHA established a
                                      substitute for CFCs                             permissible exposure limit
                                      and HCFCs.                                      for the main component of
                                                                                Ecomate TM of 100 ppm for
                                                                                a time-weighted average
                                                                                over an eight-hour work
                                                                                shift.
----------------------------------------------------------------------------------------------------------------
                                                Cleaning Solvents
----------------------------------------------------------------------------------------------------------------
Metal cleaning.....................  The Mini-Max Cleaner    Acceptable.
                                      [supreg] as a
                                      substitute for CFC-
                                      113, methyl
                                      chloroform, and HCFCs.
Electronics cleaning...............  The Mini-Max Cleaner    Acceptable.
                                      [supreg] as a
                                      substitute for CFC-
                                      113, methyl
                                      chloroform, and HCFCs.
Precision cleaning.................  The Mini-Max Cleaner    Acceptable.
                                      [supreg] as a
                                      substitute for CFC-
                                      113, methyl
                                      chloroform, and HCFCs.
----------------------------------------------------------------------------------------------------------------

                                                    Aerosols
----------------------------------------------------------------------------------------------------------------
Aerosol solvents...................  The Mini-Max Cleaner    Acceptable.
                                      [supreg] as a
                                      substitute for CFC-
                                      113, methyl
                                      chloroform, and HCFCs.
----------------------------------------------------------------------------------------------------------------
                                                   Sterilants
----------------------------------------------------------------------------------------------------------------
Sterilants.........................  The Mini-Max Cleaner    Acceptable.
                                      [supreg] as a
                                      substitute for CFC-
                                      12, HCFC-22, HCFC-
                                      124, and blends
                                      thereof.
----------------------------------------------------------------------------------------------------------------

[FR Doc. E6-15833 Filed 9-27-06; 8:45 am]

BILLING CODE 6560-50-P