# Letter to State Pipeline Safety Program Managers regarding Plastic Pipe Rule

- **operation:** document
- **citation:** PHMSA Guidance, Letter to State Pipeline Safety Program Managers regarding Plastic Pipe Rule
- **title:** Letter to State Pipeline Safety Program Managers regarding Plastic Pipe Rule
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2020-03-12
- **effective on:** 2020-03-12
- **summary:** Letter to State Pipeline Safety Program Managers regarding Plastic Pipe Rule Document Notice of Exercise of Enforcement Discretion - Plastic Pipe Rule.pdf (420.92 KB) PHMSA is not intending to enforce certain requirements as applies to those types of plastic pipeline facilities. Issued Date: Thursday, March 12, 2020
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-guidance-letter-state-pipeline-safety-program-managers-regarding-a0f2c696.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-guidance-letter-state-pipeline-safety-program-managers-regarding-a0f2c696.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-guidance-letter-state-pipeline-safety-program-managers-regarding-a0f2c696
- **source url:** https://www.phmsa.dot.gov/regulatory-compliance/phmsa-guidance/letter-state-pipeline-safety-program-managers-regarding
**body:**

Letter to State Pipeline Safety Program Managers regarding Plastic Pipe Rule

Document

 Notice of Exercise of Enforcement Discretion - Plastic Pipe Rule.pdf (420.92 KB)

        PHMSA is not intending to enforce certain requirements as applies to those types of plastic pipeline facilities.

          Issued Date: Thursday, March 12, 2020

<<<PAGE 1>>>

U.S. Department
of Transportation
Washington, DC 20590
1200 New Jersey Avenue, SE
Materials Safety
Pipeline and Hazardous
Administration
March 12, 2020
Attention: State Pipeline Safety Program Managers
PHMSA has identified two implementation issues with the Plastic Pipe Rule. I'm writing to
communicate PHMSA's intentions to address them and provide recommendations to the States.
Compliance with Category 1 requirements for large diameter (4 inches or greater)
transition fittings:
You may recall PHMSA received a petition for reconsideration from the American Gas
Association (AGA) on December 20, 2018,' shortly after the Plastic Pipe Rule was published, to
exempt mechanical fittings with nominal pipe sizes of 4 inches or greater from the Category 1
requirements in 49 CFR 192.281 (e) (4)
§192.281 Plastic pipe.
*****
(e) Mechanical joints. Each compression type mechanical joint on plastic pipe must
comply with the following:
*****
(3) All mechanical fittings must meet a listed specification based upon the applicable
material.
(4) All mechanical joints or fittings installed after January 22, 2019, must be Category 1
as defined by a listed specification 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.
AGA raised issues with the commercial availability of fittings 4 inches or larger that meet the
requirements. The biggest issue appeared to be with availability of transition couplings for
plastic to metallic connections, particularly plastic to cast iron connections.
' Available on regulations.gov at https://www.regulations.gov/document?D-PHMSA-2014-0098-0063.

<<<PAGE 2>>>

State Pipeline Safety Program Managers
Page 2
PHMSA provided a response to AGA on March 1, 2019, of its intentions to delay the compliance
deadline for Category 1 requirements for joints between metallic and plastic pipe with a nominal
size of 4 or greater until January 22, 2020. The date was intended to help provide additional time
to develop and test larger mechanical fittings that can meet the Category 1 performance standard
of §192.281 (e)(4), along with other requirements in newly incorporated fitting standards such as
ASTM F1924 and ASTM F1948 invoked through §192.281 (e)(3).
While manufacturers have made progress in testing their large diameter fittings they could not
quite get all tests completed by January 22, 2020. One manufacturer indicated they would
complete all required tests for the full range of sizes by the week of February 3 and another
indicated that they may need until August. Even with the fittings starting to be commercially
available, AGA has communicated that it could take their members up to six months to train
personnel and update procedures. Part of that timing includes time needed to receive fittings and
swap out any non-compliant fittings in their inventory, such as Category 3 that were previously
allowed prior to the Plastic Pipe Rule but no longer allowed post rule, in addition to the time
needed to update procedures and provide training to staff on any design changes.
After consideration of the information presented, PHMSA is not intending to enforce the
requirements of §§192.281 (e)(3) or 192.281 (e)(4) for joints between metallic and plastic pipe
with a nominal pipe size of 4 or greater until August 31, 2020, and recommends States do the
same.
Ideally operators would wait until the fittings are fully tested, available, and integrated into their
supply chain, procedures, and training prior to being installed. If they don’t install non-
compliant fittings there is no enforcement issue. However, if operators do need to install fittings
whose testing results are still being evaluated, they should implement a tracking and traceability
program to know where those fittings are located. Such fittings must be replaced if the design
subsequently fails testing by the manufacturer. In some cases, supplemental restraint may also
be needed to meet the requirement. Operators should also obtain letters from their manufacturer
on status of testing, availability of fittings, and any training and procedural changes anticipated.
Fusion Qualification: Considering Alternative Procedures to ASTM F2620 for
Polyethylene (PE):
AGA submitted a petition on August 23, 2019 requesting PHMSA amend §§ 192.281 and
192.285 to allow alternatives to ASTM F2620 for qualifying joining procedures and joiners.
§192.281 Plastic pipe.
*****
(c) Heat-fusion joints. Each heat fusion joint on a PE pipe or component, except for
electrofusion joints, must comply with ASTM F2620-12 (incorporated by reference in
§192.7) and the following:
*****
§192.285 Plastic pipe: Qualifying persons to make joints.

<<<PAGE 3>>>

State Pipeline Safety Program Managers
Page 3
*****
(b) The specimen joint must be:
*****
(2) In the case of a heat fusion, solvent cement, or adhesive joint:
(i) Tested under any one of the test methods listed under §192.283(a), or for PE heat
fusion joints (except for electrofusion joints) visually inspected and tested in accordance
with ASTM F2620-12 (incorporated by reference, see §192.7) applicable to the type of
joint and material being tested;
The AGA stated many utilities have been using previously qualified heat fusion procedures
developed by the industry and published by the Plastic Pipe Institute (PPI), such as PPI TR-33
“Generic Butt Fusion Joining Procedure for Field Joining of Polyethylene Pipe” and PPI TR-41
“Generic Saddle Fusion Joining Procedure for Polyethylene Gas Piping”, that deviate from
ASTM F2620 in some aspects. Some operators also developed their own procedures. AGA
noted that while the rule preamble talked about the potential for other procedures to be
acceptable if an operator can demonstrate any differences are sound and provide an equivalent or
superior level of safety compared to ASTM F2620, the actual rule language doesn’t appear to
provide an option for alternative procedures.
In a November 18, 2019, response to the AGA, PHMSA indicated it will consider amending
§§ 192.281(c) and 192.285(b)(2)(i) consistent with the discussion in the preamble of the Plastic
Pipe Final Rule to allow the use of written procedures other than ASTM F2620 that are
demonstrated to provide an equivalent or superior level of safety. PHMSA is also considering
whether it would be appropriate to incorporate by reference the 2019 version of ASTM F2620,
which includes a note that ties ASTM F2620 with the PPI procedures mentioned in the petition,
in a future rulemaking.
In the interim until a rulemaking is proposed and ultimately finalized, PHMSA is planning to
enforce this requirement consistent with the language in the preamble and recommends States do
the same.
Sincerely,
Zach Barrett
Director, State Programs
- **truncated:** false
- **body characters:** 7276
