[Federal Register Volume 80, Number 98 (Thursday, May 21, 2015)]
[Proposed Rules]
[Pages 29263-29277]
[FR Doc No: 2015-12113]

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DEPARTMENT OF TRANSPORTATION

Pipeline and Hazardous Materials Safety Administration

49 CFR Part 192

[Docket No. PHMSA-2014-0098]
RIN 2137-AE93

Pipeline Safety: Plastic Pipe Rule

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

ACTION: Notice of Proposed Rulemaking (NPRM).

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SUMMARY: PHMSA is proposing to amend the natural and other gas pipeline
safety regulations (49 CFR part 192) to address regulatory requirements
involving plastic piping systems used in gas services. These proposed
amendments are intended to correct errors, address inconsistencies, and
respond to petitions for rulemaking. The requirements in several
subject matter areas are affected, including incorporation of tracking
and traceability provisions; design factor for polyethylene (PE) pipe;
more stringent mechanical fitting requirements; updated and additional
regulations for risers; expanded use of Polyamide-11 (PA-11)
thermoplastic pipe; incorporation of newer Polyamide-12 (PA-12)
thermoplastic pipe; and incorporation of updated and additional
standards for fittings.

DATES: Submit comments on or before July 31, 2015.

ADDRESSES: Comments should reference Docket No. PHMSA-2014-0098 and may
be submitted in the following ways:
     E-Gov Web site: http://www.regulations.gov. This Web site
allows the public to enter comments on any Federal Register notice
issued by any agency. Follow the instructions for submitting comments.
     Fax: 1-202-493-2251.
     Mail: Docket Management System: U.S. Department of
Transportation, Docket Operations, M-30, Room W12-140, 1200 New Jersey
Avenue SE., Washington, DC 20590-0001.
     Hand Delivery: DOT Docket Management System, West Building
Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC
20590-0001 between 9 a.m. and 5 p.m., Monday through Friday, except
Federal holidays.
    Instructions: If you submit your comments by mail, please submit
two copies. To receive confirmation that PHMSA received your comments,
include a self-addressed stamped postcard.

    Note: Comments are posted without changes or edits to http://www.regulations.gov, including any personal information provided.
There is a privacy statement published on http://www.regulations.gov.

Privacy Act Statement

    In accordance with 5 U.S.C. 553(c), DOT solicits comments from the
public to better inform its rulemaking process. DOT posts these
comments, without edit, including any personal information the
commenter provides, to www.regulations.gov, as described in the system
of records notice (DOT/ALL-14 FDMS), which can be reviewed at
www.dot.gov/privacy.

FOR FURTHER INFORMATION CONTACT:
    General Information: Cameron Satterthwaite, Transportation
Specialist, by telephone at<PHONE_NUMBER>, or by electronic mail at
<EMAIL_ADDRESS>    Technical Questions: Max Kieba, General Engineer, by telephone at
202-493-0595, or by electronic mail at<EMAIL_ADDRESS>
SUPPLEMENTARY INFORMATION:

I. Background

    The use and availability of plastic pipe have changed over the
years with technological innovations in the products and best practices
used in plastic pipe installations. Progress in the design and
manufacture of plastic pipe and components has resulted in materials
with higher strength characteristics. Manufacturers are instituting new
practices related to traceability. Operators are incorporating best
practices. Together, these measures have the potential to improve with
pipeline safety and integrity. Some of these strides have been
highlighted in petitions that are detailed below. The pipeline safety
regulations have not stayed current with some of these products; this
rulemaking is an effort to propose a number of revisions to incorporate
these changes in the interest of pipeline safety.
    PHMSA has received several rulemaking petitions involving plastic
pipe. Copies of these petitions have been placed in the docket (PHMSA-
2014-0098) for this rulemaking in addition to the docket that may have
been initially established for the petition. This proposed rule will
address the following petitions:
     American Gas Association (AGA)--(Docket No. PHMSA 2010-
0011)--Petition to increase design factor 0.32 to 0.4 and incorporate
updated ASTM D2513 (standard for Polyethylene (PE) pipe).
     Evonik Industries (Evonik) and UBE Industries (UBE)--
(Docket No. PHMSA 2010-0009)--Petition to allow use of Polyamide (PA-
12) pipe.
     Arkema--(Docket No. PHMSA 2013-0227)--Petition to allow
use of Polyamide (PA-11) pipe at higher pressures.
     Gas Piping Technology Committee (GPTC)--Petition to allow
above-ground, encased plastic pipe for regulator and metering stations.
    While there has been much progress, both Federal and State
inspectors, have noticed some issues related to the installation of
plastic pipe that should be addressed in the pipeline safety
regulations. In an effort to address these issues, respond to petitions
and update the regulations with respect to the products and practices
used in plastic pipe system without compromising safety, PHMSA is
proposing revisions to the Federal Pipeline Safety Regulations (PSR) in
49 CFR part 192. This focus will limit these proposals to plastic
pipelines in gas service and subsequently to new, repaired, and
replaced pipes. These issues are addressed and detailed below as
follows:

A. Tracking and Traceability
B. Design Factor for PE
C. Expanded use of PA-11
D. Incorporation of PA-12
E. Risers
F. Fittings
G. Plastic Pipe Installation
    G.1.--Installation by Trenchless Excavation (Sec. Sec.  192.3,
192.329, and 192.376)
    G.2.--Joining Plastic Pipe (Sec.  192.281)
    G.3.--Qualifying Joining Procedures (Sec.  192.283)
    G.4.--Qualifying Persons To Make Joints (Sec.  192.285)
    G.5.--Bends (Sec.  192.313)
    G.6.--Installation of Plastic Pipe (Sec.  192.321)
    G.7.--Service Lines; General Requirements for Connections to
Main Piping (Sec.  192.367)
    G.8.--Equipment Maintenance; Plastic Pipe Joining (Sec.
192.756)
H. Repairs
    H.1.--Repair of Plastic Pipe--Gouges (Sec.  192.311)
    H.2.--Leak Repair Clamps (Sec.  192.720)
I. General Provisions
    I.1.--Incorporation by Reference (Sec.  192.7)
    I.2.--Plastic Pipe Material (Sec.  192.59)
    I.3.--Plastic Pipe Storage and Handling (Sec.  192.67)
    I.4.--Gathering Lines (Sec.  192.9)
    I.5.--Merger of Sections 192.121 and 192.123
    I.6.--General Design Requirements for Components (Sec.  192.143)
    I.7.--General Design Requirements for Valves (Sec.  192.145)

    I.8.--General Design Requirements for Standard Fittings (Sec.
192.149)
    I.9.--Test Requirements for Plastic Pipelines (Sec.  192.513)

A. Traceability and Tracking

    In many cases, the lack of adequate traceability for plastic pipe
(i.e., appropriate markings that help identify the location of
manufacture, lot information, size, material, pressure rating,
temperature rating and, as appropriate, type, grade, and model, etc.,
of the pipe and components) and tracking of pipe location (i.e., a
means of identifying the location of pipe and components within the
pipeline) prevents operators from having enough information to identify
systemic issues related to incidents involving plastic pipe. Further,
the lack of this information makes it difficult for operators and
regulators to determine whether plastic pipe or component failures are
related to a certain type or vintage of material, specific product
defect or design, heat/lot of the product, or whether it was produced
by a certain manufacturer at a certain time.
    In addition, the issue can result in excessive pipe excavations due
to an inability to locate the affected sections of pipe or fittings
when responding to plastic pipe or component manufacturer recalls. In
2001, the National Association of Pipeline Safety Representatives
(NAPSR), a non-profit organization of State pipeline safety personnel
that promotes pipeline safety in the United States and its territories,
also noted this issue in its RESOLUTION NO. 2001-2-SR-2-01 (Resolution
SR-2-01). In its Resolution, NAPSR referred to accident investigations
where insufficient data regarding the pipe material (i.e., date of
manufacture and other relevant information) had proven to be an
obstacle in determining the cause or origin of an incident. NAPSR also
recognized that existing pipe, fittings, and components often do not
maintain their markings for a sufficient period of time to provide
useful tracking and traceability information. Therefore, NAPSR
requested that PHMSA revise Sec.  192.63 (``Marking of Materials'') to
require the marking of all pipe and components to ensure identification
for a period of 50 years or the life of the pipeline. NAPSR also
expressed the view that the marking of plastic pipe, fittings, and
components will benefit the industry and public by allowing the
identification of problems and proactively mitigating future problems
through such identification.
    In an effort to address the concerns mentioned above and to address
the resolution from NAPSR, PHMSA proposes new requirements for tracking
and traceability of plastic pipe and components that extend beyond
marking alone. To set the framework for tracking and traceability,
PHMSA proposes to revise Sec.  192.3 by adding definitions for
``traceability information'' and ``tracking information.'' It is
PHMSA's intent that all operators have methods to identify the location
of pipe, the person who joined the pipe, and components within the
pipeline (i.e., tracking). PHMSA also proposes that operators be
required to identify and document the location of pipe manufacture,
production, lot information, size, material, pressure rating,
temperature rating, and, as appropriate, other information such as
type, grade, and model (i.e., traceability). In order to facilitate
compliance, PHMSA proposes to revise Sec.  192.63 to require operators
to adopt the tracking and traceability requirements in ASTM F2897-11a,
``Standard Specification for Tracking and Traceability Encoding System
of Natural Gas Distribution Components (Pipe, Tubing, Fittings, Valves,
and Appurtenances)'' (Standard). Note that the Standard only specifies
requirements for information that marks pipe and components with a 16-
digit code to help identify characteristics such as manufacturer,
material type, lot code, etc. While the Standard gives some examples of
the types of markings, such as barcodes, 2D-Data matrix, or a more
conventional print line, it does not provide the actual means of
marking or affixing the code to the components, the means of reading
and transferring the data or codes, and the durability of the markings.
    In response to the 2001 NAPSR Resolution, PHMSA also proposes to
clarify Sec.  192.63 by expressly providing that specification and
traceability markings on plastic pipe be legible, visible, and
permanent in accordance with the pipe's listed specification. The
proposed revisions in Sec.  192.63 also reference the recordkeeping
requirements for these markings in Sec. Sec.  192.321(k) and
192.375(d). Section 192.321 applies to the installation of plastic pipe
used for transmission lines and mains, and Sec.  192.375 contains
requirements for plastic service lines.
    PHMSA further proposes to add a new paragraph (k) to Sec.  192.321
and a new paragraph (d) to Sec.  192.375 to require operators to
maintain tracking and traceability information (as defined in Sec.
192.3) records for the life of the pipeline. PHMSA believes this
performance-based approach will allow for the use of other methods and
technologies. For instance, during construction or repair, operators
may choose to use a Global Positioning System (GPS) in combination with
a barcode reader to help mark the location or identify other features
of the pipe or component. Other operators without the means to purchase
such equipment may choose to collect and store the information manually
or electronically. The purpose of these proposed revisions is to enable
operators to accurately locate and quickly identify the installed pipe
and components in their systems when handling recalls and conducting
failure investigations. The revisions also support the requirements in
the distribution integrity management programs for capturing and
retaining certain information on new pipelines for the life of the
lines (Sec.  192.1007(a)(5)). In addition, the proposed requirement
would also support the current plastic pipe-joiner qualification
requirements in Sec.  192.285.

B. Design Factor of PE

    PHMSA received petitions from the American Gas Association (AGA)
and the Gas Piping Technology Committee (GPTC) to increase the design
factor for PE pipe from 0.32 to 0.40 in Sec.  192.121. The allowable
design pressure for plastic is based on a number of factors, including
the stress rating of the material (interpolated from a Hydrostatic
Design Basis (HDB) rating), wall thickness and diameter or standard
dimension ratio (SDR), and design factor. The allowable design factor
is currently 0.32 for plastics. The exception to this design factor
limitation applies to Polyamide-11 pipe (PA-11) produced after January
23, 2009, meeting certain conditions, which would allow the design
factor to increase to 0.40. The petitions to allow for a 0.40 design
factor for PE pipe are based on research and technical justifications
performed by the Gas Technology Institute (GTI) and include certain
limitations by type of material and wall thickness. Since design
pressure for plastic pipe is based on a number of variables, including
design factor and wall thickness, an increase in design factor would
allow for the use of PE pipe with smaller wall thicknesses while
limited to the allowable pressures determined in Sec.  192.121 if the
pipe is made from higher quality material and meets other limitations
mentioned in the petitions. Furthermore, a design factor of 0.40 is
already allowed in Sec.  192.121 for PA-11 pipe with certain
limitations. Upon review, PHMSA proposes to adopt this provision into
the PSR. The details of the proposal are

specified below under ``G. Plastic Pipe Installation.''

C. Expanded Use of PA-11

    Polyamide-11, also referred to as Nylon 11, is a relatively newer
type of plastic material with a different structure (nylon- or amide-
based) compared to other common plastic materials in use such as
Polyethylene (ethylene-based). Similar to PE materials with different
types, names, or material designation codes such as PE3408 and PE4710,
Polyamides or Nylon materials have different types such as PA-6 or
Nylon 6, or relatively newer types discussed in this rulemaking like
PA-11 or PA-12, with material designation codes such as PA32312 or
PA32316. There are a number of differences amongst the kinds of
plastics and pros and cons for each, but, at a high level, Polyamides
such as PA-11 have a higher strength or hydrostatic design basis (HDB)
rating compared to PE materials. The HDB is a reflection of a plastic
pipe's ability to resist internal pressure over long periods of time.
The Hydrostatic Stress Board of the Plastics Pipe Institute (PPI)
recommends and lists a HDB for a plastic pipe material based on testing
of the material using the industry accepted test methods published by
ASTM International. As a result of a higher HDB rating, materials like
PA-11 can typically be designed and operated at higher pressures. On
December 24, 2008 (73 FR 79005), PHMSA issued a final rule to allow the
use of a new thermoplastic pipe made from Polyamide-11 (PA-11) with
certain limitations for pressure (up to 200 psig), diameter (up to 4-
inch nominal pipe size), and an SDR of 11 and below (i.e., thicker wall
pipe). This final rule was in response to a petition from Arkema, a
manufacturer of PA-11 pipe. On November 11, 2013, Arkema, the sole
current producer of PA-11, sent a petition (Docket No. PHMSA-2013-0262)
to PHMSA to allow PA-11 to be used for pressures up to 250 psig and
pipe diameters up to 6-inch nominal pipe size, with limitations on wall
thickness depending on diameter. Arkema is also petitioning PHMSA to
allow for arithmetic interpolation in the allowable pressure equation
for PA-11 pipe by removing the note in Sec.  192.121 that currently
does not allow arithmetic interpolation for PA-11 pipe. Arkema further
petitioned PHMSA to incorporate the following standards related to PA-
11:
     ASTM F2945-12a, Standard Specification for (PA-11) Gas
Pressure Pipe, Tubing and Fittings;
     ASTM/ANSI F2600-09, Standard Specification for
Electrofusion Type PA-11 Fittings for Outside Diameter Controlled PA-11
Pipe and Tubing;
     ASTM/ANSI F1973-13, Standard Specification for Factory
Assembled Anodeless Risers and Transition Fittings in PE and PA-11 and
PA-12 Fuel Gas Distribution Systems;
     ASTM/ANSI F2145-13, Standard Specification for PA-11 and
PA-12 Mechanical Fittings for Use on Outside Diameter Controlled PA-11
and PA-12 Pipe and Tubing;
     ASTM/ANSI F1948-12, Standard Specification for Metallic
Mechanical Fittings for Use on Outside Diameter Controlled
Thermoplastic Gas Distribution Pipe and Tubing; and
     ASME/ANSI B16.40-08, Manually Operated Thermoplastic Gas
Shutoffs and Valves in Gas Distribution Systems.
    As justification for its petition, Arkema points to the many years
of testing and evaluation of PA-11 at operating pressures greater than
100 psig on projects under special permit and non-DOT jurisdictional
pipelines that date back to 1999. Arkema also references the successful
implementation of Sec.  192.123(f), which allows for the use of PA-11
produced after January 23, 2009, at design pressures up to 200 psig
under certain conditions. Although Arkema did not reference any
projects that utilize PA-11 between 200 and 250 psig, Arkema believes
an increase in allowable pressures up to 250 psig is justified through
interpolation of a Hydrostatic Design Basis (HDB) of 3,150 psi for PA-
11, as listed in Plastics Pipe Institute (PPI) TR4 (previous code
limitations were based on an HDB of 2,500 psi for PA-11).
    PHMSA agrees with Arkema's rationale of using the interpolation of
the HDB listings for PA-11 to substantiate design pressures up to 250
psig. HDB listings are established in accordance with PPI TR-3,
``Policies and Procedures for Developing Hydrostatic Design Basis
(HDB), Strength Design Basis (SDB), Pressure Design Basis (PDB) or
Minimum Required Strength (MRS) Ratings for Thermoplastic Piping
Materials or Pipe,'' which is incorporated by reference in Sec.  192.7.
As detailed in Sec.  192.121, the design pressure (P) can be calculated
by the equation P = (2S/(SDR - 1)) x (DF), where S is the HDB rating,
SDR is the standard dimension ratio (the ratio of the average specified
outside diameter to wall thickness), and DF is the design factor. If an
HDB rating of 2,500 psi (basis for current limitation using previous
vintage PA-11 pipe with material designation code PA32312) is used
along with an SDR of 11 (a common value for mid-range pipe diameters)
and a DF of 0.4 (which is currently allowed for PA-11), the resulting
design pressure (P) would equal 200 psi, which is the current maximum
allowable design pressure for PA-11 in part 192. If the HDB is changed
to 3,150 psi (newer vintage PA-11 pipe with material designation code
PA32316), and both the SDR and DF remain the same, the resulting design
pressure would equal 252 psi, rounded down to 250 psi for a maximum
allowable design pressure. Therefore, PHMSA proposes to revise the PSR
to allow PA-11 pipe (PA32316) for pressures up to 250 psi, diameters up
to 6 inches, and additional limitations on wall thickness as listed in
the petition. PHMSA also proposes to specify that both PA32312 and
PA32316 can be used for pressures up to 200 psi. Regarding standards
relevant to PA-11 that Arkema petitioned to be incorporated by
reference, PHMSA proposes to incorporate them as requested.
Incorporating these newer standards specific to PA-11 will also allow
PHMSA to phase out older standards incorporated by reference like ASTM
D2513-87 and ASTM D2513-99, which covered multiple plastic materials
including PA, PE, and others, up until ASTM D2513-09a when it became a
PE-only standard. Another rulemaking by PHMSA incorporated ASTM D2513-
09a for PE but continued to reference ASTM D2513-87 and ASTM D2513-99
for plastics other than PE while these other product specific standards
were being developed. Having multiple versions of the same standard in
this interim period has created some confusion.

D. Incorporation of PA-12

    On January 6, 2011, PA-12 pipe manufacturers (Evonik and UBE;
Petitioners) submitted a petition to amend the PSR to allow the use of
PA-12 pipe. Specifically, Evonik and UBE petitioned (Docket No. PHMSA-
2010-0009) PHMSA to revise Sec. Sec.  192.121 and 192.123 to:
     Allow for the use of PA-12 piping systems with a 0.40
design factor;
     Include maximum design pressure limitations for PA-12
piping systems of 250 psig;
     Allow a nominal pipe size of 6-inch diameters or less;
     Allow a minimum wall thickness of at least 0.90 inches,
with additional limitations on the wall thickness, depending on
diameter;
     Require unplasticized material;
     Limit PA-12 pipe materials to those specified in ASTM
F2785; and
     Require PA-12 to comply with the rest of the part 192
requirements related

to joining, pressure testing, and appurtenances, as detailed in
Sec. Sec.  192.281, 192.283, 192.285, and 192.513.
    In their petition, Evonik and UBE state that PA-12 material has
been tested more than any other pipe material prior to its use and
approval. The Petitioners also stated that the results ``amply
validated'' the overall strength and durability of the PA-12 material
and piping systems against known threats and failure mechanisms. Evonik
and UBE noted in their petition that PA-12 has been granted for use
under a special permit in the States of Montana and Mississippi. The
petitioners also noted the development of a performance-based standard
(ASTM F2785-09) for PA-12. The petitioners assert that this standard
contains comprehensive performance-based requirements that would ensure
the safe long-term performance of PA-12 pipe, tubing, and fittings.
    Upon review of the petition, PHMSA proposes to revise the PSR to
allow the use of PA-12 pipe at pressures up to 250 psig for pipe up to
6 inches in diameter, and to impose additional limitations on wall
thickness as listed in the petition. These limitations would also be
consistent with the PA-11 consideration described above. PHMSA also
proposes to incorporate by reference ASTM F2785-12, ``Standard
Specification for Polyamide 12 Gas Pressure Pipe, Tubing, and
Fittings,'' along with other standards applicable to both PA-11 and PA-
12 that are described immediately above in the section related to PA-11
considerations and the PA-11 petition.

E. Risers

    In general, a pipeline riser is a vertical pipe that connects
buried pipe to an aboveground component, such as a meter. In many
cases, the riser is a transitional component that attaches a buried
plastic pipe to a metal or a metal-encased plastic pipe (anodeless
riser), which is connected to a gas meter. While risers are most
commonly found connecting service lines to meter sets, risers are also
used within distribution mains and transmission systems when entering
or exiting small regulator stations or whenever a transition between
buried and unburied pipe is necessary.
    The PSR do not contain specific design, construction, or
installation requirements for risers. In 2014, the GPTC petitioned
PHMSA to allow above-ground, encased plastic pipe at the inlet and
outlet of regulator and metering stations if (1) the above-ground level
part of the plastic pipe is protected against deterioration and
external damage; (2) the plastic pipe is not used to support external
loads; and (3) the plastic pipe is not allowed to exceed the pipe
temperature limits at Sec.  192.123. Therefore, PHMSA proposes specific
requirements for the design (Sec.  192.204) and construction of risers
(Sec. Sec.  192.321(j) and 192.375(a)(2)) associated with plastic pipe.
Further, PHMSA proposes to incorporate by reference ASTM F1973,
``Standard Specification for Factory Assembled Anodeless Risers and
Transition Fittings in Polyethylene (PE) and Polyamide 11 (PA11) and
Polyamide 12 (PA12) Fuel Gas Distribution Systems'' in these new
sections. ASTM F1973 addresses various issues such as the removal of
burrs on metal components prior to the insertion of plastic pipe and
other riser assembly provisions.

F. Fittings

    PHMSA and others (e.g., NTSB and certain States) have observed
problems with mechanical fittings or joints becoming loose or pipe
being pulled out from fittings, leading to leaks and, in certain cases,
incidents. Failures can occur when there is inadequate restraint for
the potential stresses on the two fitted pipes, when the couplings are
incorrectly installed or supported, or when the coupling components
(e.g., elastomers) degrade over time. More details on these issues are
available in PHMSA Advisory Bulletin ADB-08-02, issued in March 2008,
titled ``Pipeline Safety: Issues Related to Mechanical Couplings Used
in Natural Gas Distribution Systems.'' Therefore, PHMSA is proposing
the incorporation of a requirement to use only mechanical fittings or
joints that are designed and tested to provide a seal plus resistance
to lateral forces so that a large force on the connection would cause
the pipe to yield before the joint does.
    More specifically, ASTM D2513, currently incorporated by reference
in part 192, provides categorizations for the different mechanical
joints, including ``[s]eal plus resistance to a force on the pipe end
equal to or greater than that which will cause permanent deformation of
the pipe'' (Category 1), seal only (Category 2), and seal plus pipe
restraint to account for thermal stresses (Category 3). The Category 1
joint is generally considered the most stringent of the three
categories. ASTM D2513 is now a polyethylene-only standard, but other
standards being proposed for incorporation in this NPRM and that are
applicable to other materials, (i.e., ASTM F1924, ASTM F1948, and ASTM
F1973) have Category 1 definitions. The definitions in each of these
standards are slightly different in language but are still consistent
with each other and the performance language in ASTM D2513. Some of
these standards also point back to ASTM D2513 for PE-specific
considerations. The regulation, as proposed, would require mechanical
fittings, joints, or connections to provide a Category 1 joint as
defined in ASTM F1924, ASTM F1948, and ASTM F1973 for the applicable
material. In an effort to have consistency in language given the
slightly different definitions in the various standards, PHMSA is
proposing ``a seal plus resistance to a force on the pipe joint equal
to or greater than that which will cause no less than 25% elongation of
pipe, or the pipe fails outside the joint area if tested in accordance
with the applicable standard.'' These revisions for Category 1 apply in
sections such as Sec.  192.281(e) for plastic pipe joining and Sec.
192.367 for service lines and connections to main piping and are
described in further detail elsewhere in this document.
    In light of the proposed revisions of the PA-11 and PE regulations,
and the introduction of PA-12, PHMSA proposes to also consider recently
developed standards for incorporation by reference that further enhance
pipeline safety in order to address potential safety risks. These
proposed standards to be incorporated by reference are listed in
``Section I. General Provisions.''

Electrically Isolated Metal Alloy Fittings in Plastic Pipe (Section
192.455)

    Section 192.455 details external corrosion control requirements for
buried or submerged pipe installed after July 31, 1971. Paragraph (a)
currently requires such pipelines to have external protective coatings
meeting the requirements of Sec.  192.461 and a cathodic protection
system placed in operation within 1 year after construction is
completed. However, paragraph (a) contains certain exceptions. One is
detailed in paragraph (f) and applies to electrically isolated, metal
alloy fittings in plastic pipelines where an operator can show by test,
investigation, or experience in the area of application, that adequate
corrosion control is provided by the alloy composition, and the fitting
is designed to prevent leakage caused by corrosion pitting. For those
fittings that do not meet the requirements of paragraph (f), cathodic
protection and cathodic protection monitoring is required. PHMSA
proposes to add a new paragraph (g) to require such fittings used
within plastic pipelines be cathodically protected and monitored in

accordance with Sec. Sec.  192.455 and 192.465(a).

G. Plastic Pipe Installation

    PHMSA is proposing several revisions with regard to the
installation of plastic pipe, organized topically as follows:

G.1.--Installation by Trenchless Excavation (Sections 192.3, 192.329
and 192.376)

    The PSR do not contain detailed requirements for the installation
of plastic pipe by trenchless excavation. PHMSA and the States are
aware of a number of incidents related to cross-boring, where plastic
pipe installed via trenchless excavation (e.g., directional drilling)
has come in contact with or been installed right through another
underground utility such as a sewer line. In an effort to improve
pipeline and public safety and implement a consistent approach to this
method of installation while considering industry best practices in use
today, PHMSA proposes to add new Sec. Sec.  192.329 and 192.376 to
detail some basic requirements. These proposals include requiring each
operator to ensure that the path of the excavation will provide
sufficient clearance for installation and maintenance activities from
other underground utilities and structures. Additionally, PHMSA
proposes to require plastic pipe and components that are pulled through
the ground to incorporate the use of a ``weak link.'' PHMSA is
proposing the definition of ``weak link'' in Sec.  192.3. A weak link
is used to prevent damage to the pipeline that could be caused by
excessive forces during the pulling process.

G.2.--Joining Plastic Pipe (Section 192.281)

    Section 192.281 details the requirements for joining plastic pipe.
In an effort to reduce confusion and promote safety, PHMSA is proposing
several revisions to Sec.  192.281.
    Section 192.281(b) contains requirements for solvent cement joints.
PHMSA proposes to revise Sec.  192.281(b)(2) to specify that the
solvent cement requirements in ASTM D2564-12 apply only to polyvinyl
chloride (PVC) pipe. This is a clarifying revision, since PVC is the
only material that is allowed by PSR to be joined by solvent cement.
    Section 192.281(c) contains requirements for heat-fusion joints.
Currently, these requirements refer to only the ``pipe'' that is being
joined. PHMSA proposes to clarify paragraph (c) to specify that the
joining requirements apply to both the pipe and the components that are
joined to the pipe.
    Section 192.281(e) contains requirements for mechanical joints but
does not clearly list specific standards for the requirements. This has
led to some inconsistencies in practices used, or the requirements were
incorporated indirectly via another referenced standard and were not
always clear. PHMSA proposes to add a new paragraph (e)(3) to require
that each fitting used to make a mechanical joint meets a listed
specification. With this requirement, PHMSA hopes to make it clearer
that fittings and joints must meet a standard specification listed in
the code. The standards that would apply are among the ``Other Listed
Specifications for Components'' that are being proposed through
revisions to Appendix B and described in more detail elsewhere in this
document.

G.3.--Qualifying Joining Procedures (Section 192.283)

    Section 192.283 details the requirements for qualifying plastic
pipe joining procedures. Currently, Sec.  192.283(a) specifies that
heat fusion joints for thermoplastic pipe must be tested in accordance
with ASTM D2513-99 for plastics other than polyethylene or with ASTM
D2513-09a for polyethylene plastic materials. In this proposed rule,
PHMSA is proposing to incorporate a newer version of ASTM D2513 for PE-
only materials and incorporate standards applicable to other types of
thermoplastic pipe (i.e., PA-11, and PA-12). Therefore, PHMSA proposes
to revise Sec.  192.283(a) to refer operators to the appropriate listed
specification. Listed specifications are detailed in Appendix B to Part
192.
    PHMSA also proposes to remove the current Sec.  192.283(d), which
allows the use of pipe or fittings manufactured before July 1, 1980, if
they are joined in accordance with procedures that the manufacturer
certifies will produce a joint as strong as the pipe. As a number of
advancements have been made in standards related to pipe and fittings
since 1980, the use of newer materials manufactured in accordance with
more current standards should be encouraged. Pipe and fittings that are
newly installed, repaired, or replaced after the effective date of the
rule will be required to meet newer standards. This proposed revision
would not preclude the use of pipe or fittings manufactured prior to
July 1, 1980, which were already installed prior to the effective date
of the rule.

G.4.--Qualifying Persons To Make Joints (Section 192.285)

    Section 192.285 details the requirements for qualifying persons to
make joints. PHMSA proposes to revise Sec.  192.285 to incorporate
several revisions. Section 192.285(a)(2) currently specifies that a
person must make a specimen joint that is subjected to the testing
detailed in Sec.  192.285(b). PHMSA proposes to remove the testing
details in Sec.  192.285(b) and reference ASTM F2620-12 (Standard
Practice for Heat Fusion Joining of Polyethylene Pipe and Fittings).
PHMSA also proposes to require operators to maintain records detailing
the location of each joint and the person who made the joint.

G.5.--Bends (Section 192.313)

    Section 192.313 details requirements for bends and elbows, but
currently only for steel pipe. To address bends in plastic pipe, PHMSA
proposes to add a paragraph (d) to specify that installed plastic pipe
may not contain bends that exceed the maximum radius specified by the
manufacturer for the diameter of the pipe.

G.6.--Installation of Plastic Pipe (Section 192.321)

    Section 192.321 details requirements for the installation of
plastic pipe transmission lines and mains. PHMSA is proposing several
revisions to this section. Currently, Sec.  192.321(d) specifies that
non-encased thermoplastic pipe must have a minimum wall thickness of
0.090 inches, except for pipe with an outside diameter of 0.875 inches
or less, which must have a minimum wall thickness of 0.062 inches.
PHMSA proposes to require all plastic pipe to have a minimum wall
thickness of 0.090 inches.
    Section 192.321(f) specifies that plastic pipe being encased must
be inserted into the casing pipe in a manner that will protect the
plastic, and that the leading edge of the inserted pipe must be closed
before insertion. PHMSA proposes to specify that the plastic pipe must
be protected from damage at both the entrance and exit of the casing
during the installation process.
    Section 192.321(h) specifies requirements for plastic pipe
installed on bridges. Paragraph (h)(3) contains a reference to Sec.
192.123. Based on the proposed merging of Sec.  192.123 into Sec.
192.121, PHMSA proposes to revise paragraph (h)(3) to replace the
currently referenced Sec.  192.123 with Sec.  192.121.
    Although part 192 contains some requirements for backfill
materials,

there are no explicit requirements for backfill material used in the
installation of plastic pipe. PHMSA recognizes that plastic pipe
subjected to improper backfill materials or practices could be at risk
to damage that could impact pipeline integrity. In line with best
practices in use today, PHMSA proposes to add a new paragraph (i) to
Sec.  192.321 and a new paragraph (c) to Sec.  192.375 to include
specific provisions for backfill material for plastic pipe. These
provisions would specify that backfill material not include materials
that could be detrimental to the pipe, such as rocks of a size
exceeding those established through sound engineering practices. The
provisions would also require the ground to be properly compacted
underneath, along the sides, and for a predetermined distance above the
installed pipe.
    PHMSA understands that there are applications that may require
plastic mains to terminate aboveground for permanent installations.
Currently, Sec.  192.321 does not address plastic mains which terminate
above ground. Therefore, PHMSA proposes a new paragraph (j) to allow
for the aboveground level termination of plastic mains under certain
conditions.

G.7.--Service Lines; General Requirements for Connections to Main
Piping (Section 192.367)

    Section 192.367(b) specifies requirements for compression-type
connections to a main. As described further in the Fittings section
above, PHMSA and others (e.g., NTSB and certain States) have observed
problems with mechanical fittings or joints becoming loose or pipe
being pulled out from fittings, leading to leaks and, in certain cases,
incidents. Similar to revisions being proposed in Sec.  192.281(e)
related to plastic pipe joining, PHMSA is proposing the incorporation
of a requirement that connections are a Category 1 joint per applicable
standards for different plastic materials, which is generally
considered the most stringent of the three categories. PHMSA proposes
to add a new paragraph (b)(3) to require mechanical connections on
plastic pipe to be a Category 1 connection as defined by ASTM F1924,
ASTM F1948, or ASTM F1973 for the applicable material, providing a seal
plus resistance to a force on the pipe joint equal to or greater than
that which will cause no less than 25% elongation of pipe, or the pipe
fails outside the joint area if tested in accordance with the
applicable standard.

G.8.--Equipment Maintenance; Plastic Pipe Joining (Section 192.756)

    Due to the difficulty in assessing the quality of field joints, it
is very important for operators to use properly calibrated and
maintained equipment. Currently, the PSR do not contain detailed
minimum provisions for maintaining equipment used in joining plastic
pipe. Therefore, PHMSA proposes to add a new Sec.  192.756 to include
such requirements. These provisions would require each operator to
maintain the applicable equipment, including measuring devices for
joining plastic pipe, in accordance with the manufacturers' recommended
practices or alternative procedures that have been proven by testing
and experience. Operators would also be required to calibrate and test
such equipment and devices and maintain records that substantiate these
calibrations and tests. The equipment subject to these requirements
would include, but not be limited to, fusion equipment, alignment
equipment, facing and adaptor equipment, heater plates, and gauging
devices. PHMSA proposes that records of all tests and calibrations,
except those that might occur through daily verifications and
adjustments, be maintained for the life of the pipeline.

H. Repairs

H.1.--Repair of Plastic Pipe (Gouges)

    Section 192.311 currently specifies that, for plastic pipe, each
imperfection or damage that would impair the serviceability of plastic
pipe must be repaired or removed. For consistency with industry best
practices, PHMSA proposes to include a requirement for all plastic pipe
and or components to be replaced if they have a scratch or gouge
exceeding 10 percent of the wall thickness.

H.2.--Leak Repair Clamps

    PHMSA and States have observed issues where some operators have
used stainless steel band clamps, intended and designed for temporary
repairs on plastic pipe used in gas distribution, as a permanent repair
solution. While clamps can be an effective temporary solution in
certain situations, such as during an incident to stop the release of
gas, PHMSA believes that these clamps should be used only as a
temporary repair measure until the pipe can be replaced. PHMSA is also
aware of at least one manufacturer that has issued a letter saying its
repair clamps are intended for temporary repairs only and should be
replaced with a more permanent solution. Therefore, PHMSA proposes the
incorporation of a new section (Sec.  192.720) to prohibit the use of
leak-repair clamps as a means for permanent repair on gas pipe used in
distribution service.

I. General Provisions

    PHMSA is proposing a number of general revisions to the PSR as
follows:

I.1. Incorporation by Reference (Section 192.7)

    Consistent with the proposed amendments in this document, PHMSA
proposes to incorporate by reference several standards. The standards
are identified as follows:
     ASTM D2513-12ael ``Standard Specification for Polyethylene
(PE) Gas Pressure Pipe, Tubing, and Fittings''--This specification
covers requirements and test methods for material dimensions and
tolerances, hydrostatic burst strength, chemical resistance, and rapid
crack resistance of polyethylene pipe, tubing, and fittings for use in
fuel gas mains and services for direct burial and reliner applications.
The pipe and fittings covered by this specification are intended for
use in the distribution of natural gas. Requirements for the qualifying
of polyethylene systems for use with liquefied petroleum gas are also
covered.
     ASTM F2785-12 ``Standard Specification for Polyamide 12
Gas Pressure Pipe, Tubing, and Fittings''--This specification covers
requirements and test methods for the characterization of polyamide 12
pipe, tubing, and fittings for use in fuel gas mains and services for
direct burial and reliner applications. The pipe and fittings covered
by this specification are intended for use in the distribution of
natural gas.
     ASTM F2945-12a ``Standard Specification for Polyamide 11
Gas Pressure Pipe, Tubing, and Fittings'' 11/27/2012.--This
specification covers requirements and test methods for the
characterization of polyamide 11 pipe, tubing, and fittings for use in
fuel gas piping.
     ASTM F2620-12 ``Standard Practice for Heat Fusion Joining
of Polyethylene Pipe and Fittings'' 11/01/2013.--This practice
describes procedures for making joints with polyethylene (PE) pipe and
fittings by means of heat fusion joining in, but not limited to, a
field environment. The parameters and procedures are applicable only to
joining PE pipe and fittings of related polymer chemistry.
     ASTM D2564-12 ``Standard Specification for Solvent Cements
for Poly (Vinyl Chloride) (PVC) Plastic Piping Systems'' 08/01/2012.--
This specification covers requirements for

poly (vinyl chloride) (PVC) solvent cements to be used in joining poly
(vinyl chloride) piping systems.
     ASTM F2817-10 ``Standard Specification for Poly (Vinyl
Chloride) (PVC) Gas Pressure Pipe and Fittings For Maintenance or
Repair'' (PVC components only) 08/01/2013--This specification covers
requirements for PVC pipe and tubing for use only to maintain or repair
existing PVC gas piping.
     ASTM F2897-11a ``Standard Specification for Tracking and
Traceability Encoding System of Natural Gas Distribution Components
(Pipe, Tubing, Fittings, Valves, and Appurtenances)'' 11/01/2011--This
specification defines requirements for the data used in the tracking
and traceability base-62 encoding system and the format of the
resultant code to characterize various components used in fuel gas
piping systems.
     ASTM/ANSI F2600-09 ``Standard Specification for
Electrofusion Type Polyamide-11 Fittings for Outside Diameter
Controlled Polyamide-11 Pipe and Tubing'' 4/1/2009.--This specification
covers polyamide-11 electrofusion fittings for use with outside
diameter-controlled polyamide-11 pipe, covered by Specification D2513.
Requirements for materials, workmanship, and testing performance are
included.
     ASTM F2767-12 ``Specification for Electrofusion Type
Polyamide-12 Fittings for Outside Diameter Controlled Polyamide-12 Pipe
and Tubing for Gas Distribution'' 10/15/2012.--This specification
applies to polyamide-12 electrofusion fittings for use with outside
diameter-controlled polyamide-12 pipes, addressed by Specification
F2785.
     ASTM/ANSI F2145-13 ``Standard Specification for Polyamide
11 (PA 11) and Polyamide 12 (PA12) Mechanical Fittings for Use on
Outside Diameter Controlled Polyamide 11 and Polyamide 12 Pipe and
Tubing'' 05/01/2013.--This specification describes requirements and
test methods for the qualification of Polyamide 11 (PA 11) bodied
mechanical fittings for use with outside diameter controlled PA 11,
nominal 2 pipe size (IPS) and smaller complying with Specification
D2513. The requirements and test methods for the qualification of
Polyamide 12 (PA12) bodied mechanical fittings for use with outside
diameter controlled Polyamide 11 (PA11), nominal 2 in pipe size (IPS)
and smaller complying with Specification D2513 and outside diameter
controlled PA12, nominal 2 in pipe size (IPS) and smaller complying
with Specification F2785. In addition, it specifies general
requirements of the material from which these fittings are made.
     ASTM/ANSI F1948-12 ``Standard Specification for Metallic
Mechanical Fittings for Use on Outside Diameter Controlled
Thermoplastic Gas Distribution Pipe and Tubing'' 04/01/2012.--This
specification covers requirements and test methods for the
qualification of metallic mechanical fittings for use with outside
diameter controlled thermoplastic gas distribution pipe and tubing as
specified in Specification D2513.
     ASTM F1973-13 ``Standard Specification for Factory
Assembled Anodeless Risers and Transition Fittings in Polyethylene (PE)
and Polyamide 11 (PA11) and Polyamide 12 (PA12) Fuel Gas Distribution
Systems'' 05/01/2013.--This specification covers requirements and test
methods for the qualification of factory assembled anodeless risers and
transition fittings, for use in polyethylene (PE), in sizes through NPS
8, and Polyamide 11 (PA11) and Polyamide 12 (PA12), in sizes through
NPS 6, gas distribution systems.
     ASME/ANSI B 16.40-08 ``Manually Operated Thermoplastic Gas
Shutoffs and Valves in Gas Distribution Systems'' 04/30/2008.--This
standard covers manually operated thermo-plastic valves in nominal
valve sizes \1/2\ through 12 intended for use below ground in
thermoplastic fuel gas distribution mains and service lines.
     PPI TR-4/2012 ``PPI Listing of Hydrostatic Design Basis
(HDB), Hydrostatic Design Stress (HDS), Strength Design Basis (SDB),
Pressure Design Basis (PDB) and Minimum Required Strength (MRS) Rating
For Thermoplastic Piping Materials or Pipe.''--This report lists
thermoplastic piping materials with a Plastics Pipe Institute (PPI)
recommended Hydrostatic Design Basis (HDB), Strength Design Basis
(SDB), Pressure Design Basis (PDB) or Minimum Required Strength (MRS)
rating for thermoplastic piping materials or pipe. These listings have
been established in accordance with PPI TR-3.
    PHMSA also proposes to update the following standards which are
summarized below:
     ASTM F1055-98 (2006) ``Standard Specification for
Electrofusion Type Polyethylene Fittings for Outside Diameter
Controlled Polyethylene Pipe and Tubing'' This specification covers
electrofusion polyethylene fittings for use with outside diameter-
controlled polyethylene pipe, covered by Specifications D 2447, D 2513,
D 2737, D 3035, and F 714. This specification is a 2006 reaffirmed
version of the 1998 version, meaning the technical content of the
standard itself hadn't changed but as a matter of process had to be
reviewed by the ASTM technical committee to keep it active. It should
be noted there is a more current version of the F1055 standard (ASTM
F1015-13) but PHMSA has chosen not to propose that version as the name
and scope have expanded to include Crosslinked Polyethylene (PEX) Pipe
and Tubing, a material not otherwise recognized in the 49 CFR part 192.
PHMSA is open to comments on whether or not the latest version should
be considered; and
     PPI TR-3/2012 ``Policies and Procedures for Developing
Hydrostatic Design Basis (HDB), Hydrostatic Design Stresses (HDS),
Pressure Design Basis (PDB), Strength Design Basis (SDB), Minimum
Required Strength (MRS) Ratings, and Categorized Required Strength
(CRS) for Thermoplastic Piping Materials or Pipe''--This report
presents the policies and procedures used by the HSB (Hydrostatic
Stress Board) of PPI (Plastics Pipe Institute, Inc.) to develop
recommendations of long-term strength ratings for commercial
thermoplastic piping materials or pipe. This version is an update to
the 2008 version currently incorporated by reference. A more detailed
summary of updates to the 2010 version (successor to the 2008 version)
is available in the 2012 document itself. Recommendations are published
in PPI TR-4.

I.2. Plastic Pipe Material

    Section 192.59 specifies requirements for plastic pipe materials.
Paragraph (a) details the qualification-for-use requirements for new
plastic pipe. PHMSA proposes to add a new paragraph (a)(3) to require
new plastic pipe be free from visible defects, a requirement consistent
with a similar requirement already in place for used plastic pipe as
detailed in paragraph (b)(5). At this time, non-destructive evaluation
technologies have not been proven to be reliable and effective for
inspecting plastic pipe. Therefore, visual inspection continues to be
the primary method for detecting and evaluating defects.
    In Sec.  192.59, paragraph (b) details specific qualification
requirements for used plastic pipe. Section 192.59(b)(3) specifies that
used plastic pipe is qualified for use if it has been used only in
natural gas service. PHMSA believes that used plastic pipe should not
be limited to ``natural gas'' service but in any ``gas'' service as
defined in Sec.  192.3. This is consistent with the applicability
provisions in Sec.  192.1, which specifies

that part 192 prescribes minimum safety requirements for the
transportation of ``gas.'' Therefore, PHMSA proposes to revise Sec.
192.59(b)(3) to replace ``natural gas'' with ``gas.''
    PHMSA is also looking to address some issues surrounding PVC pipe
and components used for repair situations. Historically, PVC pipe and
components have technically been allowed by code, including for repair,
but industry has slowly been phasing out the installation and use of
PVC piping, including for repair, in favor of other newer and better-
performing plastic materials. PVC components are still used to a larger
extent, however, as they are not as susceptible to the same issues of
brittle-like cracking as PVC piping. To align with this shift, PHMSA is
proposing to add a new Sec.  192.59(e) to explicitly prohibit the use
of PVC pipe for new installations after the effective date of the rule,
including for repairs. This new requirement would not prevent the use
of previously installed PVC pipe, nor would it preclude the use of PVC
components for the repair of existing PVC pipe. Requirements for PVC
were previously addressed under ASTM D2513-99, but following the change
to make ASTM D2513 a PE-only standard, there is now a standalone ASTM
standard for PVC. For PVC components used to repair existing PVC pipe,
PHMSA is proposing to incorporate ASTM F2817-10, ``Standard
Specification for Poly (Vinyl Chloride) (PVC) Gas Pressure Pipe and
Fittings For Maintenance or Repair.''

I.3. Plastic Pipe Storage and Handling

    Currently, the PSR do not directly address the storage and handling
of plastic pipe other than through standards incorporated by reference.
In an effort to reduce any confusion regarding the proper storage and
handling of plastic pipe, PHMSA proposes a new Sec.  192.67. The
proposed new section would require operators to have written procedures
for storage and handling that meets the applicable listed
specification.

I.4. Gathering Lines

    Section 192.9 currently details the requirements applicable to
gathering lines. In particular, Sec.  192.9(d) specifies the
requirements for Type B regulated onshore gathering lines. Currently,
as specified under Sec.  192.9(d)(1), gathering line operators are
required to comply with the design, installation, construction, initial
inspection, and initial testing requirements in part 192 applicable to
transmission lines. This would include plastic pipe requirements such
as for design (Sec.  192.121), joining (Sec. Sec.  192.281 and
192.283), and installation (Sec.  192.321). PHMSA believes that this
information may not be clear since most transmission lines do not
consist of plastic pipe. Therefore, PHMSA proposes to add a new
paragraph (d)(7) to specify that such pipelines, if containing plastic
pipe or components, must comply with all requirements of part 192
applicable to plastic pipe.

I.5. Merge Sections 192.121 and 192.123

    Currently, Sec.  192.121 specifies the calculations for determining
the design pressure for plastic pipe, while Sec.  192.123 specifies the
design limitations for plastic pipe. In an effort to make the PSR
easier to follow and to increase clarity, PHMSA proposes to merge the
Sec.  192.123 design limitations into Sec.  192.121. PHMSA also
proposes to increase the maximum design factor for PE pipe, increase
the design pressure limitations of PA-11 pipe, and add design factor
and pressure limitations for the use of PA-12 plastic pipe. These
proposals would apply to materials produced after the effective date of
the final rule.

I.6. General Design Requirements for Components (Section 192.143)

    Section 192.143 contains general design provisions for pipeline
components. For clarification purposes, PHMSA proposes the addition of
a new paragraph (c) to specify that components used for plastic pipe
must be able to withstand operating pressures and anticipated loads in
accordance with a listed specification. Currently, Sec.  192.191
specifies design pressure requirements for plastic fittings. With the
addition of Sec.  192.143(c), Sec.  192.191 would be redundant;
therefore, PHMSA proposes its removal.

I.7. General Design Requirements for Valves (Section 192.145)

    Section 192.145 contains general design provisions for pipeline
valves. For clarification purposes, PHMSA proposes the addition of a
new paragraph (f) to specify that plastic valves must meet a ``listed
specification'' as defined in Sec.  192.3. PHMSA also proposes to
clarify that plastic valves must not be used in operating conditions
that exceed the applicable pressure or temperature ratings detailed in
the applicable listed specification, consistent with language in Sec.
192.145(a).

I.8. General Design Requirements for Standard Fittings (Section
192.149)

    Section 192.149 contains general design provisions for pipeline
fittings. For clarification purposes, PHMSA proposes the addition of a
new paragraph (c) to specify that a plastic fitting may only be used if
it meets a listed specification.

I.9. Test Requirements for Plastic Pipelines

    Section 192.513(c) currently states that the test pressure for
plastic pipelines must be at least 150 percent of the maximum operating
pressure or 50 psig, whichever is greater, and that the maximum test
pressure may not be more than 3 times the pressure determined under
Sec.  192.121. Given the other design limitations in the current Sec.
192.123 for PE and PA-11, and the revisions being proposed in this rule
for PE, PA-11, and PA-12, PHMSA believes that plastic pipe will
potentially be overstressed if tested to 3 times the pressure
determined under Sec.  192.121. Therefore, PHMSA proposes to revise
Sec.  192.513(c) so that the maximum limit for test pressure is 2.5
times the pressure determined under Sec.  192.121.

II. Availability of Standards Incorporated by Reference

    PHMSA currently incorporates by reference into 49 CFR parts 192,
193, and 195 all or parts of more than 60 standards and specifications
developed and published by standard developing organizations (SDOs). In
general, SDOs update and revise their published standards every 3 to 5
years to reflect modern technology and best technical practices.
    The National Technology Transfer and Advancement Act of 1995 (Pub.
L. 104-113) directs Federal agencies to use voluntary consensus
standards in lieu of government-written standards whenever possible.
Voluntary consensus standards are standards developed or adopted by
voluntary bodies that develop, establish, or coordinate technical
standards using agreed-upon procedures. In addition, Office of
Management and Budget (OMB) issued OMB Circular A-119 to implement
Section 12(d) of Public Law 104-113 relative to the utilization of
consensus technical standards by Federal agencies. This circular
provides guidance for agencies participating in voluntary consensus
standards bodies and describes procedures for satisfying the reporting
requirements in Public Law 104-113.
    In accordance with the preceding provisions, PHMSA has the
responsibility for determining, via petitions or otherwise, which
currently referenced standards should be updated, revised, or removed,
and which standards should be added to 49 CFR parts 192, 193, and 195.
Revisions to

incorporated by reference materials in 49 CFR parts 192, 193, and 195
are handled via the rulemaking process, which allows for the public and
regulated entities to provide input. During the rulemaking process,
PHMSA must also obtain approval from the Office of the Federal Register
to incorporate by reference any new materials.
    On January 3, 2012, President Obama signed the Pipeline Safety,
Regulatory Certainty, and Job Creation Act of 2011, Public Law 112-90.
Section 24 states: ``Beginning 1 year after the date of enactment of
this subsection, the Secretary may not issue guidance or a regulation
pursuant to this chapter that incorporates by reference any documents
or portions thereof unless the documents or portions thereof are made
available to the public, free of charge, on an Internet Web site.'' 49
U.S.C. 60102(p).
    On August 9, 2013, Public Law 113-30 revised 49 U.S.C. 60102(p) to
replace ``1 year'' with ``3 years'' and remove the phrases ``guidance
or'' and ``,on an Internet Web site.'' This resulted in the current
language in 49 U.S.C. 60102(p), which now reads as follows:
    ``Beginning 3 years after the date of enactment of this subsection,
the Secretary may not issue a regulation pursuant to this chapter that
incorporates by reference any documents or portions thereof unless the
documents or portions thereof are made available to the public, free of
charge.''
    Further, the Office of the Federal Register issued a November 7,
2014, rulemaking (79 FR 66278) that revised 1 CFR 51.5 to require that
agencies detail in the preamble of a proposed rulemaking the ways the
materials it proposes to incorporate by reference are reasonably
available to interested parties, or how the agency worked to make those
materials reasonably available to interested parties. In relation to
this proposed rulemaking, PHMSA has contacted each SDO and has
requested a hyperlink to a free copy of each standard that has been
proposed for incorporation by reference. Access to these standards will
be granted until the end of the comment period for this proposed
rulemaking. Access to these documents can be found on the PHMSA Web
site at the following URL: http://www.phmsa.dot.gov/pipeline/regs under
``Standards Incorporated by Reference.''

III. Regulatory Analyses and Notices

Summary/Legal Authority for This Rulemaking

    This NPRM is published under the authority of the Federal pipeline
safety law (49 U.S.C. 60101 et seq.). Section 60102 authorizes the
Secretary of Transportation to issue regulations governing design,
installation, inspection, emergency plans and procedures, testing,
construction, extension, operation, replacement, and maintenance of
pipeline facilities. Further, Section 60102(l) of the Federal pipeline
safety law states that the Secretary shall, to the extent appropriate
and practicable, update incorporated industry standards that have been
adopted as a part of the PSR. If adopted as proposed, this NPRM would
modify the PSR applicable to plastic pipe.

Executive Order 12866, Executive Order 13563, and DOT Regulatory
Policies and Procedures

    This NPRM is not a significant regulatory action under section 3(f)
of Executive Order 12866 (58 FR 51735) and therefore was not reviewed
by the Office of Management and Budget. This NPRM is not significant
under the Regulatory Policies and Procedures of the Department of
Transportation (44 FR 11034).
    Executive Orders 12866 and 13563 require 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.''
PHMSA proposes to amend the PSR with regards to plastic pipe to improve
compliance with these regulations by updating and adding references to
technical standards and providing clarification. PHMSA anticipates that
the amendments contained in this NPRM will have economic benefits to
the regulated community by increasing the clarity of its regulations
and reducing compliance costs. A copy of the regulatory evaluation is
available for review in the docket.

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. This
proposed rule has been developed in accordance with Executive Order
13272 (``Proper Consideration of Small Entities in Agency Rulemaking'')
and DOT's procedures and policies to promote compliance with the
Regulatory Flexibility Act to ensure that potential impacts of draft
rules on small entities are properly considered.
    While PHMSA does not collect information on the number of employees
or revenues of pipeline operators, it does continuously seek
information on the number of small pipeline operators to more fully
determine any impacts PHMSA's proposed regulations may have on small
entities. This NPRM proposes to require small and large operators to
comply with these requirements. A copy of the Initial Regulatory
Flexibility Analysis has been placed in the docket.

Executive Order 13175

    PHMSA has analyzed this NPRM according to the principles and
criteria in Executive Order 13175, ``Consultation and Coordination with
Indian Tribal Governments.'' Because this NPRM does not significantly
or uniquely affect the communities of the Indian tribal governments or
impose substantial direct compliance costs, the funding and
consultation requirements of Executive Order 13175 do not apply.

Paperwork Reduction Act

    This NPRM does not impose any new information collection
requirements.

Unfunded Mandates Reform Act of 1995

    This NPRM does not impose unfunded mandates under the Unfunded
Mandates Reform Act of 1995. It would not result in costs of $100
million, adjusted for inflation, or more in any one year 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 NPRM.

National Environmental Policy Act

    PHMSA analyzed this proposed rule in accordance with section
102(2)(c) of the National Environmental Policy Act (42 U.S.C. 4332),
the Council on Environmental Quality regulations (40 CFR parts 1500-
1508), and DOT Order 5610.1C, and has preliminarily determined that
this action will not significantly affect the quality of the human
environment. A preliminary environmental assessment of this rulemaking
is available in the docket, and PHMSA invites comment on environmental
impacts of this rule, if any.

Privacy Act Statement

    Anyone may search the electronic form of all comments received for
any of our dockets. You may review DOT's

complete Privacy Act Statement published in the Federal Register on
April 11, 2000 (70 FR 19477).

Executive Order 13132

    PHMSA has analyzed this NPRM according to Executive Order 13132
(``Federalism''). The NPRM does not have a substantial direct effect 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. This NPRM does not impose substantial
direct compliance costs on State and local governments. This NPRM does
not preempt State law for intrastate pipelines. Therefore, the
consultation and funding requirements of Executive Order 13132 do not
apply.

Executive Order 13211

    This NPRM is not a ``significant energy action'' under Executive
Order 13211 (Actions Concerning Regulations That Significantly Affect
Energy Supply, Distribution, or Use). It is not likely to have a
significant adverse effect on supply, distribution, or energy use.
Further, the Office of Information and Regulatory Affairs has not
designated this NPRM as a significant energy action.

List of Subjects in 49 CFR Part 192

    Incorporation by reference, Pipeline safety, Plastic pipe, Security
measures.

    In consideration of the foregoing, PHMSA proposes to amend 49 CFR
Chapter I as follows:

PART 192--TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE:
MINIMUM FEDERAL SAFETY STANDARDS

0
1. The authority citation for part 192 continues to read as follows:

    Authority: 49 U.S.C. 5103, 60102, 60104, 60108, 60109, 60110,
60113, 60116, and 60118; and 49 CFR 1.97.

0
2. Section 192.3 is revised to add the following definitions in
appropriate alphabetical order as follows:

Sec.  192.3  Definitions.

* * * * *
    Traceability information means data that is provided within ASTM
F2897-11a (incorporated by reference, see Sec.  192.7) that indicates
within the unique identifier, at a minimum, the location of
manufacture, production, lot information, size, material, pressure
rating, temperature rating and, as appropriate, type, grade and model
of pipe and components.
    Tracking information means data that provides for the
identification of the location of pipe and components, the date
installed, and the person who made the joints in the pipeline system.
* * * * *
    Weak Link means a device used when pulling polyethylene pipe,
typically through methods such as horizontal directional drilling, to
ensure that damage will not occur to the pipeline by exceeding the
maximum tensile stresses allowed.
0
3. Amend Sec.  192.7 as follows:
0
a. Remove paragraphs (d)(11), (d)(12), (d)(13), (d)(15), (j)(1),
0
b. Redesignate paragraphs (c)(3) through (c)(9) as paragraphs (c)(4)-
(10) and redesignate paragraph (d)(14) as (d)(12).
0
c. Add paragraphs (c)(3), (d)(11), (d)(13) through (d)(25), (j)(1), and
(j)(2) to read as follows.

Sec.  192.7  What documents are incorporated by reference partly or
wholly in this part?

* * * * *
    (c) * * *
    (3) ASME/ANSI B 16.40-08, ``Manually Operated Thermoplastic Gas
Shutoffs and Valves in Gas Distribution Systems,'' (ASME/ANSI B16.40-
08), IBR approved for Item I, Appendix B to Part 192.
* * * * *
    (d) * * *
    (11) ASTM D2513-12ae1, ``Standard Specification for Polyethylene
(PE) Gas Pressure Pipe, Tubing, and Fittings,'' (ASTM D2513-12ae1), IBR
approved for Item I, Appendix B to Part 192.
* * * * *
    (13) ASTM D2564-12, ``Standard Specification for Solvent Cements
for Poly(Vinyl Chloride) (PVC) Plastic Piping Systems,'' (ASTM D2564-
12), IBR approved for Sec.  192.281(b)(2).
    (14) ASTM F1055-98 (2006), ``Standard Specification for Electro
fusion Type Polyethylene Fittings for Outside Diameter Controlled
Polyethylene Pipe and Tubing,'' (ASTM F1055-98), IBR approved for Item
I, Appendix B to Part 192.
    (15) ASTM F1924-12, ``Standard Specification for Plastic Mechanical
Fittings for Use on Outside Diameter Controlled Polyethylene Gas
Distribution Pipe and Tubing,'' (ASTM F1924-12), IBR approved for
Sec. Sec.  192.281(e); 192.367(b)(3); and Item I, Appendix B to Part
192.
    (16) ASTM F1948-12, ``Standard Specification for Metallic
Mechanical Fittings for Use on Outside Diameter Controlled
Thermoplastic Gas Distribution Pipe and Tubing,'' (ASTM F1948-12), IBR
approved for Sec. Sec.  192.281(e); 192.367(b)(3); and Item I, Appendix
B to Part 192.
    (17) ASTM F1973-13, ``Standard Specification for Factory Assembled
Anodeless Risers and Transition Fittings in Polyethylene (PE) and
Polyamide 11 (PA 11) and Polyamide 12 (PA 12) Fuel Gas Distribution
Systems,'' (ASTM F1973-13), IBR approved for Sec. Sec.  192.204(b);
192.281(e); 192.367(b)(3); and Item I, Appendix B to Part 192.
    (18) ASTM/ANSI F2145-13, ``Standard Specification for Polyamide 11
(PA-11) and Polyamide 12 (PA-12) Mechanical Fittings for Use on Outside
Diameter Controlled Polyamide 11 and Polyamide 12 Pipe and Tubing,''
(ASTM/ANSI F2145-13), IBR approved for Item I, Appendix B to Part 192.
    (19) ASTM/ANSI F2600-09, ``Standard Specification for Electrofusion
Type Polyamide-11 Fittings for Outside Diameter Controlled Polyamide-11
Pipe and Tubing,'' (ASTM/ANSI F2600-09), IBR approved for Item I,
Appendix B to Part 192.
    (20) ASTM F2620-12, ``Standard Practice for Heat Fusion Joining of
Polyethylene Pipe and Fittings,'' (ASTM F2620-12), IBR approved for
Sec. Sec.  192.281(c) and 192.285(b)(2)(i).
    (21) ASTM F2767-12, ``Specification for Electrofusion Type
Polyamide-12 Fittings for Outside Diameter Controlled Polyamide-12 Pipe
and Tubing for Gas Distribution,'' (ASTM F2767-12), IBR approved for
Item I, Appendix B to Part 192.
    (22) ASTM F2785-12, ``Standard Specification for Polyamide 12 Gas
Pressure Pipe, Tubing, and Fittings'' PA-12, (ASTM F2785-12), IBR
approved for Item I, Appendix B to Part 192.
    (23) ASTM F2817-10, ``Standard Specification for Poly (Vinyl
Chloride) (PVC) Gas Pressure Pipe and Fittings For Maintenance or
Repair,'' (ASTM F2817-10), IBR approved for Item I, Appendix B to Part
192.
    (24) ASTM F2897-11a, ``Standard Specification for Tracking and
Traceability Encoding System of Natural Gas Distribution Components
(Pipe, Tubing, Fittings, Valves, and Appurtenances),'' (ASTM F2897-
11a), IBR approved for Sec. Sec.  192.3 and 192.63(e).
    (25) ASTM F2945-12a ``Standard Specification for Polyamide 11 Gas
Pressure Pipe, Tubing, and Fittings,'' PA-11, (ASTM F2945-12a), IBR
approved for Item I, Appendix B to Part 192.
* * * * *
    (j) * * *
    (1) PPI TR-3/2012, ``Policies and Procedures for Developing
Hydrostatic Design Basis (HDB), Hydrostatic Design

Stresses (HDS), Pressure Design Basis (PDB), Strength Design Basis
(SDB), Minimum Required Strength (MRS) Ratings, and Categorized
Required Strength (CRS) for Thermoplastic Piping Materials or Pipe,''
(PPI TR-3/2012), IBR approved for Sec.  192.121.
    (2) PPI TR-4/2012, ``PPI Listing of Hydrostatic Design Basis (HDB),
Hydrostatic Design Stress (HDS), Strength Design Basis (SDB), Pressure
Design Basis (PDB) and Minimum Required Strength (MRS) Rating For
Thermoplastic Piping Materials or Pipe,'' (PPI TR-4/2012), IBR approved
for Sec.  192.121.
0
4. In Sec.  192.9, paragraphs (d)(5) and (d)(6) are revised and
paragraph (d)(7) is added to read as follows:

Sec.  192.9  What requirements apply to gathering lines?

* * * * *
    (d) * * *
    (5) Establish the MAOP of the line under Sec.  192.619;
    (6) Install and maintain line markers according to the requirements
for transmission lines in Sec.  192.707; and
    (7) If the pipeline contains plastic pipe or components, the
operator must comply with all applicable requirements of this part for
plastic pipe and components.
* * * * *
0
5. In Sec.  192.59, paragraphs (a)(1), (a)(2), and (b)(3) are revised
and paragraphs (a)(3) and (e) are added to read as follows:

Sec.  192.59  Plastic pipe.

    (a) * * *
    (1) It is manufactured in accordance with a listed specification;
    (2) It is resistant to chemicals with which contact may be
anticipated; and
    (3) It is free of visible defects.
    (b) * * *
    (3) It has been used only in gas service;
* * * * *
    (e) Except for PVC fittings used for repairs on existing PVC
pipelines with materials manufactured in accordance with the listed
specification, PVC pipe cannot be used.
0
6. In Sec.  192.63, paragraph (a) is revised and paragraph (e) is added
to read as follows:

Sec.  192.63  Marking of materials.

    (a) Except as provided in paragraph (d) of this section, each
valve, fitting, length of pipe, and other component must be marked as
prescribed in the specification or standard to which it was
manufactured.
* * * * *
    (e) Additional requirements for plastic pipe and components.
    (1) All markings on plastic pipe prescribed in the listed
specification and the requirements of paragraph (e)(2) shall be
repeated at intervals not exceeding 2 feet.
    (2) Plastic pipe and components manufactured after [INSERT
EFFECTIVE DATE OF FINAL RULE], must be marked in accordance with ASTM
F2897 (incorporated by reference, see Sec.  192.7) in addition to the
listed specification.
    (3) All markings on plastic pipelines prescribed in the
specification and paragraph (e)(2) shall be legible, visible, and
permanent in accordance with the listed specification. Records of
markings prescribed in the specification and paragraph (e)(2) shall be
maintained for the life the pipeline per the requirements of Sec. Sec.
192.321(k) and 192.375(d).
0
7. Section 192.67 is added to read as follows:

Sec.  192.67  Storage and handling for plastic pipelines.

    Each operator must develop and follow written procedures for the
storage and handling of plastic pipe and/or associated components that
meet the applicable listed specifications.
0
8. Section 192.121 is revised to read as follows:

Sec.  192.121  Design of plastic pipe.

    (a) Design formula. Design formulas for plastic pipe are determined
in accordance with either of the following formulas:
[GRAPHIC] [TIFF OMITTED] TP21MY15.013

Q P=04>P = Design pressure, gage, psi (kPa).
S = For thermoplastic pipe, the HDB is determined in accordance with
the listed specification at a temperature equal to 73 [deg]F (23
[deg]C), 100 [deg]F (38 [deg]C), 120 [deg]F (49 [deg]C), or 140
[deg]F (60 [deg]C). In the absence of an HDB established at the
specified temperature, the HDB of a higher temperature may be used
in determining a design pressure rating at the specified temperature
by arithmetic interpolation using the procedure in Part D.2 of PPI
TR-3, (incorporated by reference, see Sec.  192.7). For reinforced
thermosetting plastic pipe, 11,000 psig (75,842 kPa).
t = Specified wall thickness, inches (mm).
D = Specified outside diameter, inches (mm).
SDR = Standard dimension ratio, the ratio of the average specified
outside diameter to the minimum specified wall thickness,
corresponding to a value from a common numbering system that was
derived from the American National Standards Institute (ANSI)
preferred number series 10.
DF = Design Factor, a maximum of 0.32 unless otherwise specified for
a particular material in this section.

    (b) General requirements for plastic pipe and components. (1)
Except as provided in paragraphs (c) through (f) of this section, the
design pressure for plastic pipe may not exceed a gauge pressure of 100
psig (689 kPa) for pipe used in:
    (i) Distribution systems; or
    (ii) Transmission lines in Class 3 and 4 locations.
    (2) Plastic pipe may not be used where operating temperatures of
the pipe will be:
    (i) Below -20 [deg]F (-29 [deg]C), or -40 [deg]F (-40 [deg]C) if
all pipe and pipeline components whose operating temperature will be
below -20 [deg]F (-29 [deg]C) have a temperature rating by the
manufacturer consistent with that operating temperature; or
    (ii) Above the temperature at which the HDB used in the design
formula under this section is determined.
    (3) Unless specified for a particular material in this section, the
wall thickness for plastic pipe may not be less than 0.062 inches (1.57
millimeters).
    (4) All plastic pipe must have a listed HDB in accordance with PPI
TR-4 (incorporated by reference, see Sec.  192.7).
    (c) Polyethylene (PE) pipe requirements. (1) For PE pipe produced
between July 14, 2004, and [INSERT EFFECTIVE DATE OF FINAL RULE], a
design pressure of up to 125 psig may be used, provided:
    (i) The material designation code is a PE2406 or PE3408.
    (ii) The pipe has a nominal size (IPS or CTS) of 12 inches or less
(above nominal pipe size of 12 inches, the design pressure is limited
to 100 psig); and
    (iii) The wall thickness is not less than 0.062 inches (1.57
millimeters).
    (2) For PE pipe produced after [INSERT EFFECTIVE DATE OF FINAL
RULE], a DF of 0.40 may be used in the design formula, provided:
    (i) The design pressure is limited to 125 psig;
    (ii) The material designation code is PE2708 or PE4710;
    (iii) The pipe has a nominal size (IPS or CTS) of 12 inches or
less; and
    (iv) The wall thickness for a given outside diameter is not less
than that listed in the following table:

------------------------------------------------------------------------
                                          Minimum wall
          Pipe size in inches             thickness  in   Corresponding
                                             inches         DR values
------------------------------------------------------------------------
\1/2\'' CTS............................           0.090              7

\3/4\'' CTS............................           0.090              9.7
\1/2\'' IPS............................           0.090              9.3
\3/4\'' IPS............................           0.095             11
1'' IPS................................           0.119             11
1 \1/4\'' IPS..........................           0.151             11
1 \1/2\'' IPS..........................           0.173             11
2''....................................           0.216             11
3''....................................           0.259             13.5
4''....................................           0.265             17
6''....................................           0.315             21
8''....................................           0.411             21
10''...................................           0.512             21
12''...................................           0.607             21
------------------------------------------------------------------------

    (d) Polyamide (PA-11) pipe requirements. (1) For PA-11 pipe
produced between January 23, 2009, and [INSERT EFFECTIVE DATE OF FINAL
RULE], a DF of 0.40 may be used in the design formula, provided:
    (i) The design pressure is limited to 200 psig;
    (ii) The material designation code is PA32312 or PA32316;
    (iii) The pipe has a nominal size (IPS or CTS) of 4 inches or less;
and
    (iv) The pipe has a standard dimension ratio of SDR-11 or less
(i.e., thicker-wall pipe).
    (2) For PA-11 pipe produced on or after [INSERT EFFECTIVE DATE OF
FINAL RULE], a DF of 0.40 may be used in the design formula, provided:
    (i) The design pressure is limited to 250 psig;
    (ii) The material designation code is PA32316;
    (iii) The pipe has a nominal size (IPS or CTS) of 6 inches or less;
and
    (iv) The minimum wall thickness for a given outside diameter is not
less than that listed in the following table:

------------------------------------------------------------------------
                                          Minimum wall
          Pipe size  (inches)               thickness     Corresponding
                                            (inches)       DR  (values)
------------------------------------------------------------------------
1'' IPS................................           0.119             11
1 \1/4\'' IPS..........................           0.151             11
1 \1/2\'' IPS..........................           0.173             11
2''....................................           0.216             11
3''....................................           0.259             13.5
4''....................................           0.333             13.5
6''....................................           0.491             13.5
------------------------------------------------------------------------

    (e) Polyamide (PA-12) pipe requirements. For PA-12 pipe produced
after [INSERT EFFECTIVE DATE OF FINAL RULE], a DF of 0.40 may be used
in the design formula, provided:
    (1) The design pressure is limited to 250 psig;
    (2) The pipe has a nominal size (IPS or CTS) of 6 inches or less;
and
    (3) The minimum wall thickness for a given outside diameter is not
less than that listed in the following table.

------------------------------------------------------------------------
                                        Minimum wall
         Pipe size  (inches)              thickness       Corresponding
                                          (inches)        SDR  (values)
------------------------------------------------------------------------
1 IPS....................             0.119                11
1 \1/4\ IPS..............             0.151                11
1 \1/2\ IPS..............             0.173                11
2........................             0.216                11
3........................             0.259              13.5
4........................             0.333              13.5
6........................             0.491              13.5
------------------------------------------------------------------------

    (f) Reinforced thermosetting plastic pipe requirements.
    (i) Reinforced thermosetting plastic pipe may not be used at
operating temperatures above 150[emsp14][deg]F (66 [deg]C).
    (ii) The wall thickness for reinforced thermosetting plastic pipe
may not be less than that listed in the following table:

------------------------------------------------------------------------
                                                          Minimum wall
        Nominal size in inches  (millimeters).          thickness inches
                                                          (millimeters).
------------------------------------------------------------------------
2 (51)................................................      0.060 (1.52)
3 (76)................................................      0.060 (1.52)
4 (102)...............................................      0.070 (1.78)
6 (152)...............................................      0.100 (2.54)
------------------------------------------------------------------------

Sec.  192.123  [Removed and Reserved].

0
9. Section 192.123 is removed and reserved.
0
10. In Sec.  192.143, paragraph (c) is added to read as follows:

Sec.  192.143  General requirements.

* * * * *
    (c) Each plastic component of a pipeline must be able to withstand
operating pressures and other anticipated loads in accordance with a
listed specification.
0
11. In Sec.  192.145, paragraph (f) is added to read as follows:

Sec.  192.145  Valves.

* * * * *
    (f) Plastic valves must meet the minimum requirements stipulated in
a listed specification. A valve may not be used under operating
conditions that exceed the applicable pressure and temperature ratings
contained in those requirements.
0
12. In Sec.  192.149, paragraph (c) is added to read as follows:

Sec.  192.149  Standard fittings.

* * * * *
    (c) Plastic fittings must meet a listed specification.

Sec.  192.191  [Removed and Reserved].

0
13. Section 192.191 is removed and reserved.
0
14. Section 192.204 is added to read as follows:

Sec.  192.204  Risers.

    (a) The design shall be tested to ensure safe performance under
anticipated external and internal loads acting on the assembly.
    (b) Risers shall be designed and tested in accordance with ASTM
F1973 (incorporated by reference, see Sec.  192.7).
    (c) All risers connected to plastic mains and used on regulator
stations must be rigid and have a minimum 3 ft. horizontal base leg
designed to provide adequate support and resist lateral movement. Riser
design shall be tested and accepted in accordance with ASTM F1973
(incorporated by reference, see Sec.  192.7).
0
15. In Sec.  192.281, paragraphs (b)(2),(b)(3), and (c) are revised and
paragraphs (e)(3) and (e)(4) are added to read as follows:

Sec.  192.281  Plastic Pipe.

* * * * *
    (b) * * *
    (2) The solvent cement must conform to ASTM D2564-12 for PVC
(incorporated by reference, see Sec.  192.7).
    (3) The joint may not be heated or cooled to accelerate the setting
of the cement.
    (c) Heat-fusion joints. Each heat fusion joint on a plastic pipe
and/or component must comply with ASTM 2620-12 (incorporated by
reference in Sec.  192.7) and the following:
    (1) A butt heat-fusion joint must be joined by a device that holds
the heater element square to the ends of the pipe and/or component,
compresses the heated ends together, and holds the pipe in proper
alignment in accordance with the qualified procedures.

    (2) A socket heat-fusion joint equal to or less than 1\1/4\-inches
must be joined by a device that heats the mating surfaces of the pipe
and/or component, uniformly and simultaneously, to establish the same
temperature. The device used must be the same device specified in the
operator's joining procedure for socket fusion. A socket heat-fusion
joint may not be joined on a pipe and/or component greater than 1\1/4\
inches.
    (3) An electrofusion joint must be made utilizing the equipment and
techniques prescribed by the fitting manufacturer, or utilizing
equipment and techniques shown, by testing joints to the requirements
of Sec.  192.283(b) to be equivalent to or better than the requirements
of the fitting manufacturer.
    (4) Heat may not be applied with a torch or other open flame.
* * * * *
    (e) * * *
    (3) All mechanical fittings must meet a listed specification based
upon the pipe material.
    (4) All mechanical joints or fittings shall be Category 1 as
defined by ASTM F1924, ASTM F1948, or ASTM F1973 (incorporated by
reference, see Sec.  192.7) for the applicable material, providing a
seal plus resistance to a force on the pipe joint equal to or greater
than that which will cause no less than 25% elongation of pipe, or the
pipe fails outside the joint area if tested in accordance with the
applicable standard.
0
16. Section 192.283 is revised to read as follows:

Sec.  192.283  Plastic pipe: Qualifying joining procedures.

    (a) Heat fusion, solvent cement, and adhesive joints. Before any
written procedure established under Sec.  192.273(b) is used for making
plastic pipe joints by a heat fusion, solvent cement, or adhesive
method, the procedure must be qualified by subjecting specimen joints
made according to the procedure to the following tests as applicable:
    (1) The test requirements of--
    (i) In the case of thermoplastic pipe, based upon the pipe
material, the Sustained Pressure Test or the Minimum Hydrostatic Burst
Test per the listed specification requirements. Additionally, for
electrofusion joints, based upon the pipe material, the Tensile
Strength Test or the Joint Integrity Test per the listed specification.
    (ii) In the case of thermosetting plastic pipe, paragraph 8.5
(Minimum Hydrostatic Burst Pressure) or paragraph 8.9 (Sustained Static
Pressure Test) of ASTM D2517 (incorporated by reference, see Sec.
192.7).
    (2) For procedures intended for lateral pipe connections, subject a
specimen joint made from pipe sections joined at right angles according
to the procedure to a force on the lateral pipe until failure occurs in
the specimen. If failure initiates outside the joint area, the
procedure qualifies for use.
    (3) For procedures intended for non-lateral pipe connections,
perform testing in accordance to a listed specification. If elongation
of the test specimen of no more than 25% or failure initiates outside
the joint area, the procedure qualifies for use.
    (b) Mechanical joints. Before any written procedure established
under Sec.  192.273(b) is used for making mechanical plastic pipe
joints, the procedure must be qualified in accordance with a listed
specification, based upon the pipe material.
    (c) A copy of each written procedure being used for joining plastic
pipe must be available to the persons making and inspecting joints.
0
17. In Sec.  192.285, paragraph (b)(2)(i) is revised to read as
follows:

Sec.  192.285  Plastic pipe: Qualifying persons to make joints.

* * * * *
    (b) * * *
    (2) * * *
    (i) Tested under any one of the test methods listed under Sec.
192.283(a) or the inspection and test set forth in accordance with ASTM
F2620-12 (incorporated by reference, see Sec.  192.7) applicable to the
type of joint and material being tested;
* * * * *
0
18. Section 192.311 is revised to read as follows:

Sec.  192.311  Repair of plastic pipelines.

    (a) Each imperfection or damage that would impair the
serviceability of plastic pipe must be repaired or removed.
    (b) All scratches or gouges exceeding 10% of wall thickness of pipe
and/or components shall be repaired or removed.
0
19. In Sec.  192.313, a new paragraph (d) added to read as follows:

Sec.  192.313  Bends and elbows.

* * * * *
    (d) Plastic pipe may not be installed containing bends that exceed
the maximum radius specified by the manufacturer for the diameter of
the pipe being installed.
0
20. In Sec.  192.321, paragraphs (a), (d), (f), and (h)(3) are revised
and paragraphs (i), (j), and (k) are added to read as follows:

Sec.  192.321  Installation of plastic pipelines.

    (a) Plastic pipe must be installed below ground level except as
provided by paragraphs (g), (h), and (j) of this section.
* * * * *
    (d) Plastic pipe must have a minimum wall thickness of 0.090 inches
(2.29 millimeters).
* * * * *
    (f) Plastic pipe that is being encased must be inserted into the
casing pipe in a manner that will protect the plastic. Plastic pipe
that is being encased must be protected from damage at all entrance and
all exit points of the casing. The leading end of the plastic must be
closed before insertion.
* * * * *
    (h) * * *
    (3) Not allowed to exceed the pipe temperature limits specified in
Sec.  192.121.
    (i) Backfill material must:
    (1) Not contain materials that could be detrimental to the pipe,
such as rocks of a size exceeding those established through sound
engineering practices; and
    (2) Be properly compacted underneath, along the sides, and for
predetermined distance above the pipe.
    (j) Plastic mains may terminate above ground level provided they
comply with the following:
    (1) The aboveground level part of the plastic main is protected
against deterioration and external damage.
    (2) The plastic main is not used to support external loads.
    (3) Installations of risers at regulator stations must meet the
design requirements of Sec.  192.204.
    (k) Tracking and Traceability. Each operator must maintain records
for tracking and traceability information (as defined in Sec.  192.3)
for the life of the pipeline.
0
21. Section 192.329 is added to read as follows:

Sec.  192.329  Installation of plastic pipelines by trenchless
excavation.

    Plastic pipelines installed by trenchless excavation must comply
with the following:
    (a) Each operator shall ensure that the path of the excavation will
provide sufficient clearance for installation and maintenance
activities from other underground utilities and/or structures.
    (b) For each pipeline section, plastic pipe and/or components that
are pulled through the ground must have a weak link, as defined by
Sec.  192.3, installed to ensure the pipeline will not be damaged

by any excessive forces during the pulling process.
0
22. In Sec.  192.367, paragraphs (b)(1) and (b)(2) are revised and
paragraph (b)(3) is added to read as follows:

Sec.  192.367  Service lines: General requirements for connections to
main piping.

* * * * *
    (b) * * *
    (1) Be designed and installed to effectively sustain the
longitudinal pull-out or thrust forces caused by contraction or
expansion of the piping, or by anticipated external or internal
loading;
    (2) If gaskets are used in connecting the service line to the main
connection fitting, have gaskets that are compatible with the kind of
gas in the system; and
    (3) If used on pipelines comprised of plastic, be a Category 1
connection as defined by ASTM F1924, ASTM F1948, or ASTM F1973
(incorporated by reference, see Sec.  192.7) for the applicable
material, providing a seal plus resistance to a force on the pipe joint
equal to or greater than that which will cause no less than 25%
elongation of pipe, or the pipe fails outside the joint area if tested
in accordance with the applicable standard.
0
23. In Sec.  192.375, paragraph (a)(2) is revised and paragraphs (c)
and (d) are added to read as follows:

Sec.  192.375  Service lines: Plastic.

    (a) * * *
    (2) It may terminate above ground level and outside the building,
if--
    (i) The aboveground level part of the plastic service line is
protected against deterioration and external damage;
    (ii) The plastic service line is not used to support external
loads; and
    (iii) The riser portion of the service line meets the design
requirements of Sec.  192.204.
* * * * *
    (c) Backfill material must:
    (1) Not contain materials that could be detrimental to the pipe,
such as rocks of a size exceeding those established through sound
engineering practices; and
    (2) Be properly compacted underneath, along the sides, and for
predetermined distance above the pipe.
    (d) Tracking and Traceability. Each operator must maintain records
for tracking and traceability information (as defined in Sec.  192.3)
for the life of the pipeline.
0
24. Section 192.376 is added to read as follows:

Sec.  192.376  Installation of plastic service lines by trenchless
excavation.

    Plastic service lines installed by trenchless excavation must
comply with the following:
    (a) Each operator shall ensure that the path of the excavation will
provide sufficient clearance for installation and maintenance
activities from other underground utilities and/or structures.
    (b) For each pipeline section, plastic pipe and/or components that
are pulled through the ground must have a weak link, as defined by
Sec.  192.3, installed to ensure the pipeline will not be damaged by
any excessive forces during the pulling process.
0
25. In Sec.  192.455, paragraph (g) is added to read as follows:

Sec.  192.455  External corrosion control: Buried or submerged
pipelines installed after July 31, 1971.

* * * * *
    (g) Electrically isolated metal alloy fittings in plastic pipelines
under this section not meeting the criteria contained in paragraph (f)
must be cathodically protected and monitored in accordance with this
section and Sec.  192.465(a).
0
26. In Sec.  192.513, paragraph (c) is revised to read as follows:

Sec.  192.513  Test requirements for plastic pipelines.

* * * * *
    (c) The test pressure must be at least 150 percent of the maximum
operating pressure or 50 p.s.i. (345 kPa) gage, whichever is greater.
However, the maximum test pressure may not be more than 2.5 times the
pressure determined under Sec.  192.121 at a temperature not less than
the pipe temperature during the test.
* * * * *
0
27. Section 192.720 is added to read as follows:

Sec.  192.720  Distribution systems: Leak repair.

    A leak repair clamp may not be used as a permanent repair method
for plastic pipe.
0
28. Section 192.756 is added to read as follows:

Sec.  192.756  Joining plastic pipe by heat fusion; equipment
maintenance and calibration.

    (a) Each operator must maintain equipment used in joining plastic
pipe in accordance with the manufacturer's recommended practices or
with written procedures that have been proven by test and experience to
produce acceptable joints.
    (b) Each operator must calibrate and test all equipment used to
join plastic pipe in accordance with paragraph (a) of this section. The
calibration must be appropriate for the use of the equipment and/or is
within the acceptable tolerance limit of that equipment as stated by
the manufacturer.
    (c) The term ``equipment,'' as specified in this section, includes,
but is not limited to, fusion equipment, alignment equipment, facing
and adaptor equipment, heater plates, and gauging devices.
    (d) The operator must maintain records of these tests and
calibrations (other than daily verifications and adjustments) for the
life of the pipeline.
0
29. In Appendix B to Part 192, the title of Appendix B and the list
under ``I.'' is revised to read as follows:

Appendix B to Part 192--Qualification of Pipe and Components

I. List of Specifications

A. Listed Pipe Specifications

    API 5L--Steel pipe, ``API Specification for Line Pipe''
(incorporated by reference, see Sec.  192.7).
    ASTM A53/A53M--Steel pipe, ``Standard Specification for Pipe,
Steel Black and Hot-Dipped, Zinc-Coated, Welded and Seamless''
(incorporated by reference, see Sec.  192.7).
    ASTM A106--Steel pipe, ``Standard Specification for Seamless
Carbon Steel Pipe for High Temperature Service'' (incorporated by
reference, see Sec.  192.7).
    ASTM A333/A333M--Steel pipe, ``Standard Specification for
Seamless and Welded Steel Pipe for Low Temperature Service''
(incorporated by reference, see Sec.  192.7).
    ASTM A381--Steel pipe, ``Standard Specification for Metal-Arc-
Welded Steel Pipe for Use with High-Pressure Transmission Systems''
(incorporated by reference, see Sec.  192.7).
    ASTM A671--Steel pipe, ``Standard Specification for Electric-
Fusion-Welded Pipe for Atmospheric and Lower Temperatures''
(incorporated by reference, see Sec.  192.7).
    ASTM A672--Steel pipe, ``Standard Specification for Electric-
Fusion-Welded Steel Pipe for High-Pressure Service at Moderate
Temperatures'' (incorporated by reference, see Sec.  192.7).
    ASTM A691--Steel pipe, ``Standard Specification for Carbon and
Alloy Steel Pipe, Electric-Fusion-Welded for High Pressure Service
at High Temperatures'' (incorporated by reference, see Sec.  192.7).
    ASTM D2513-12ae1, ``Standard Specification for Polyethylene (PE)
Gas Pressure Pipe, Tubing, and Fittings'' (incorporated by
reference, see Sec.  192.7).
    ASTM D2517--Thermosetting plastic pipe and tubing, ``Standard
Specification for Reinforced Epoxy Resin Gas Pressure Pipe and
Fittings'' (incorporated by reference, see Sec.  192.7).
    ASTM F2785-12, ``Standard Specification for Polyamide 12 Gas
Pressure Pipe, Tubing, and Fittings'' (PA-12) (incorporated by
reference, see Sec.  192.7).

    ASTM F2945-12a, ``Standard Specification for Polyamide 11 Gas
Pressure Pipe, Tubing, and Fittings'' (PA-11) (incorporated by
reference, see Sec.  192.7).

B. Other Listed Specifications for Components

    ASME/ANSI B16.40-08, ``Manually Operated Thermoplastic Gas
Shutoffs and Valves in Gas Distribution Systems'' (incorporated by
reference, see Sec.  192.7).
    ASTM D2513-12ae1, ``Standard Specification for Polyethylene (PE)
Gas Pressure Pipe, Tubing, and Fittings'' (incorporated by
reference, see Sec.  192.7).
    ASTM D2517--Thermosetting plastic pipe and tubing, ``Standard
Specification for Reinforced Epoxy Resin Gas Pressure Pipe and
Fittings'' (incorporated by reference, see Sec.  192.7).
    ASTM F2785-12, ``Standard Specification for Polyamide 12 Gas
Pressure Pipe, Tubing, and Fittings'' (PA-12) (incorporated by
reference, see Sec.  192.7).
    ASTM F2945-12a, ``Standard Specification for Polyamide 11 Gas
Pressure Pipe, Tubing, and Fittings'' (PA-11) (incorporated by
reference, see Sec.  192.7).
    ASTM F1055-98 (2006), ``Standard Specification for Electrofusion
Type Polyethylene Fittings for Outside Diameter Controlled
Polyethylene Pipe and Tubing'' (incorporated by reference, see Sec.
192.7).
    ASTM F1924-12, ``Standard Specification for Plastic Mechanical
Fittings for Use on Outside Diameter Controlled Polyethylene Gas
Distribution Pipe and Tubing'' (incorporated by reference, see Sec.
192.7).
    ASTM/ANSI F1948-12, ``Standard Specification for Metallic
Mechanical Fittings for Use on Outside Diameter Controlled
Thermoplastic Gas Distribution Pipe and Tubing'' (incorporated by
reference, see Sec.  192.7).
    ASTM F1973-13, ``Standard Specification for Factory Assembled
Anodeless Risers and Transition Fittings in Polyethylene (PE) and
Polyamide 11 (PA 11) and Polyamide 12 (PA 12) Fuel Gas Distribution
Systems'' (incorporated by reference, see Sec.  192.7).
    ASTM/ANSI F2600-09, ``Standard Specification for Electrofusion
Type Polyamide-11 Fittings for Outside Diameter Controlled
Polyamide-11 Pipe and Tubing'' (incorporated by reference, see Sec.
192.7).
    ASTM/ANSI F2145-13, ``Standard Specification for Polyamide 11
(PA-11) and Polyamide 12 (PA-12) Mechanical Fittings for Use on
Outside Diameter Controlled Polyamide 11 and Polyamide 12 Pipe and
Tubing'' (incorporated by reference, see Sec.  192.7).
    ASTM F2767-12, ``Specification for Electrofusion Type Polyamide-
12 Fittings for Outside Diameter Controlled Polyamide-12 Pipe and
Tubing for Gas Distribution'' (incorporated by reference, see Sec.
192.7).
    ASTM F2817-10, ``Standard Specification for Poly (Vinyl
Chloride) (PVC) Gas Pressure Pipe and Fittings for Maintenance or
Repair'' (incorporated by reference, see Sec.  192.7).
* * * * *

    Issued in Washington, DC, on May 14, 2015, under authority
delegated in 49 CFR 1.97.
Jeffrey D. Wiese,
Associate Administrator for Pipeline Safety.
[FR Doc. 2015-12113 Filed 5-20-15; 8:45 am]
 BILLING CODE 4910-60-P