This Week In Pipeline Safety – Week Ending September 27

Week ending September 27, 2026

Each week we flag the developments that actually touch the requirements pipeline operators and their contractors manage, across federal rules, state programs, and industry standards. No commentary and no spin: just the item, the requirement it affects, and a direct link so you can read it and decide for yourself.

Federal Rules & Federal Register

PHMSA has noticed an October 21, 2026 meeting of the Liquid Pipeline Advisory Committee to consider three hazardous liquid rulemakings. (Federal Register; 91 FR 60190; Docket PHMSA-2026-2773; published September 22, 2026)

At a glance

Applies to: HL, CO2. All three rulemakings on the agenda amend 49 CFR Part 195, which applies to hazardous liquid and carbon dioxide pipelines.
What it is: A virtual meeting of the LPAC, the statutory advisory committee that votes on the technical feasibility, reasonableness, cost effectiveness, and practicability of proposed hazardous liquid pipeline rules. Three published NPRMs are on the agenda: the Breakout Tank Inspection Rule (Docket PHMSA-2025-1271, RIN 2137-AG22, 91 FR 32919, published June 2, 2026), which would incorporate API Standard 653, 5th edition, and authorize risk-based inspection procedures; Remote Monitoring of Hazardous Liquid Pipeline Rectifiers (Docket PHMSA-2026-1550, RIN 2137-AG54, 91 FR 22115, published April 24, 2026), which would confirm that required electrical checks of rectifiers and other cathodic protection equipment may be performed remotely where the device gets an annual physical inspection; and Hazardous Liquid Valve Maintenance Schedule (Docket PHMSA-2026-1554, RIN 2137-AG58, 91 FR 22119, published April 24, 2026), which would move valve inspection from twice each calendar year at intervals not exceeding 7 1/2 months to once each calendar year at intervals not exceeding 15 months. The comment periods on all three NPRMs have already closed; this is the committee vote stage.
Key date(s): Meeting October 21, 2026, 9:00 a.m. to 3:00 p.m. EST, virtual. Written comments for the committee’s consideration due October 7, 2026. Registration closes October 17, 2026. Post-meeting written comments due November 20, 2026.
Relates to: 49 CFR 195.3, 195.205(b) and 195.432(b) (breakout tank inspection and incorporation by reference of API Std 653); 49 CFR 195.573(b)(2) and 195.573(c) (cathodic protection electrical checks); 49 CFR 195.420(b) (valve maintenance intervals); and the advisory committee procedure at 49 CFR 190.9.

Two PHMSA documents published between September 21 and September 27, 2026. The other, dated September 21, is a hazardous materials information collection notice and changes no requirement in 49 CFR Parts 190 through 199. (Federal Register PHMSA agency page)

The September 9, 2026 notice publishing Gexcon U.S., Inc.’s petition, and PHMSA’s draft decision, on EFFECTS Version 12.2.0 as an alternative model for calculating the flammable vapor-gas dispersion exclusion zone at LNG facilities remains open for comment and is unchanged. No extension, reopening, or decision has been published on its docket. (Federal Register; 91 FR 57446; Docket PHMSA-2024-0164)

PHMSA Guidance & Interpretations

No new PHMSA advisory bulletin, letter of interpretation, or guidance item was posted in this window. Two entries dated September 24, 2026 were added to PHMSA’s interpretations register, both answering the Public Utilities Commission of Ohio, and both are hazardous materials items reaching 49 CFR Parts 107, 173, 178, and 180 rather than pipeline safety. PHMSA’s guidance portal still shows its most recent item as July 13, 2026 (“Guidance for Enhancing the Effectiveness of Distribution Integrity Management Programs”), unchanged for eleven weeks. PHMSA’s newsroom posted no press release inside the window; its most recent item remains the September 8, 2026 hazardous materials preemption announcement. (PHMSA Guidance; PHMSA Letters of Interpretation; PHMSA press releases)

State Programs

No new state pipeline-safety rule change that alters a tracked requirement was identified in this window. State registers were not comprehensively polled this run; treat this section as not confirmed.

Enforcement & NTSB

No new PHMSA enforcement action or NTSB pipeline item dated in this window was identified.

PHMSA’s published enforcement extract did not refresh this week. Its source stamp still reads “PHMSA Work Management System as of 09/03/2026,” now unchanged for a fourth consecutive week. The dataset is refreshed monthly, so the next move should be expected in early October; the stamp, not the calendar, is what tells you how current the record is. PHMSA’s latest-actions page likewise shows no enforcement item dated inside the window. (PHMSA Enforcement Data; PHMSA Latest Actions) Relates to: the enforcement procedures at 49 CFR Part 190 and the reporting requirements at 49 CFR Part 191.

NTSB posted no pipeline release inside the window; its one release in this window, dated September 21, 2026, concerned rail worker protection during shoving movements. The preliminary report on the July 28, 2026 Union, Michigan gas distribution explosion, carried in prior issues, remains reported by local and trade press dated around August 19, 2026; a primary NTSB document for that event has still not been located. (NTSB News)

Standards & Editions

No new edition, addendum, errata, or public-review item dated in this window was identified. API’s standards announcements page still shows the second edition of API RP 1176, Assessment and Management of Cracking in Pipelines, announced August 18, 2026, as its most recent pipeline item, unchanged from last week. The page’s most recent entry overall is the third edition of API Specification Q2, announced September 10, 2026, which covers well-site service quality management rather than pipelines. (API Standards Announcements)

One standards item sits inside a rulemaking rather than on a standards page this week: the Breakout Tank Inspection NPRM going to the LPAC on October 21 would incorporate API Standard 653, 5th edition, by reference at 49 CFR 195.3. See the Federal Rules section above for the citation and dates.

Calendar reminder, not new this week: the consensus-standard edition updates PHMSA issued July 31, 2026 take effect January 1, 2027, when the updated NACE, NFPA, ASTM, and MSS editions incorporated by reference into 49 CFR Parts 192 and 195 become the versions operators must work to. Those updates were issued one standard per notice; linked here is the NACE SP0502 notice from that batch. (PHMSA standards update, NACE SP0502, July 31, 2026)

Comment Deadlines Closing Soon

Three blocks below: what closes inside roughly the next two weeks, what is further out on the calendar, and what has recently closed. Every date was read from the Federal Register notice cited, on September 27, 2026. Confirm the docket before filing.

Closing inside roughly the next two weeks:

PHMSA, Meeting of the Liquid Pipeline Advisory Committee (meeting notice, pre-meeting written comments) – comments close October 7, 2026. (Federal Register; Docket PHMSA-2026-2773; 91 FR 60190; published September 22, 2026). Relates to: 49 CFR 195.432(b), 195.573(b)(2) and (c), and 195.420(b), the three Part 195 provisions the agenda rulemakings would amend.
PHMSA, Gexcon U.S., Inc.’s Petition for EFFECTS Version 12.2.0 as an Alternative Model for Calculating the Vapor-Gas Dispersion Exclusion Zone (petition and draft decision, comment period) – comments close October 9, 2026. (Federal Register; Docket PHMSA-2024-0164; 91 FR 57446; published September 9, 2026). Relates to: 49 CFR 193.2059 (LNG flammable vapor-gas dispersion exclusion zones) and the petition procedure at 49 CFR 190.9.

Next on the calendar (more than two weeks out):

PHMSA, Meeting of the Liquid Pipeline Advisory Committee (post-meeting written comments) – comments close November 20, 2026. Registration for the October 21 meeting itself closes October 17, 2026. (Federal Register; Docket PHMSA-2026-2773). Relates to: as above.

Recently closed:

PHMSA, Repair Criteria for Hazardous Liquid and Gas Transmission Pipelines (NPRM) – comments closed September 8, 2026. No extension or reopening notice has been published since. (Federal Register; Docket PHMSA-2025-0019; RIN 2137-AF44). Relates to: anomaly response and repair criteria across 49 CFR Parts 192 and 195, including the integrity management provisions at 192.710 through 192.714 and 195.452.

Industry News

Only news items that map to a requirement we track; same rules (headline + source + link + tag, no commentary).

Environmental groups filed petitions for review in the Ninth Circuit on September 22, 2026 challenging a PHMSA special permit issued to Sable Offshore Corp. for the Santa Ynez Pipeline System. Reported by the filing organizations and by regional press; the challenged permit’s issuance date and final conditions were not read from a primary PHMSA record this week. (Center for Biological Diversity; KEYT)

At a glance

Applies to: HL. The lines at issue, CA-324 and CA-325, are hazardous liquid pipelines under 49 CFR Part 195.
What it is: Petitions for review filed in the U.S. Court of Appeals for the Ninth Circuit by the Center for Biological Diversity and the Environmental Defense Center, with co-petitioners, challenging PHMSA’s grant of special permit relief to Sable Offshore Corp. Sable’s underlying request, noticed for comment on February 24, 2026 and with the comment period extended on March 20, 2026, sought waiver of the requirement to remediate certain longitudinal seam weld corrosion within 180 days of discovery on Line CA-324 and Lines CA-325A and CA-325B. A grant or denial does not change the rule for anyone else; a special permit reaches only the operator and segments named in it.
Key date(s): Petitions filed September 22, 2026. Underlying special permit request noticed February 24, 2026; comment period extended March 20, 2026. No briefing schedule has been published.
Relates to: 49 CFR 195.452(h)(4)(iii)(H) (180-day remediation of longitudinal seam weld corrosion) and the special permit procedure at 49 CFR 190.341. (PHMSA special permit request notice, Docket PHMSA-2026-0464)

PHMSA is investigating the September 18, 2026 rupture and fire on a 16-inch Texas Gas Transmission line near Jennings, Louisiana. Reported September 21, 2026 by Underground Infrastructure; single trade-press source, and no PHMSA enforcement or incident record for the event has been located. (Underground Infrastructure)

At a glance

Applies to: GT. The line is reported as part of the Texas Gas Transmission system, a gas transmission pipeline under 49 CFR Part 192.
What it is: A reported rupture and fire on a 16-inch gas transmission line southwest of Jennings in Jeff Davis Parish. As reported, about 20 homes were temporarily evacuated, the line was shut in, no injuries were reported, and the cause has not been determined. PHMSA is reported to be investigating whether corrective action is necessary; no corrective action order appears on PHMSA’s published record.
Key date(s): Rupture September 18, 2026. Reported September 21, 2026. Under 49 CFR 191.5 an operator gives telephonic notice at the earliest practicable moment and no later than one hour after confirmed discovery; the written incident report under 49 CFR 191.15 is due within 30 days.
Relates to: 49 CFR 191.5 and 191.15 (incident notice and reporting), and, if PHMSA proceeds, the corrective action order procedure at 49 CFR 190.233.

On the federal pipeline safety reauthorization, the House bill H.R. 9338, the Pipeline Safety Authorization Act of 2026, records no action since July 21, 2026, when the Energy and Commerce Committee ordered it reported in the nature of a substitute by a vote of 41 to 8; no floor action occurred inside this window. (H.R. 9338 bill status)

Upcoming Industry Events

Regulatory meetings and industry events over roughly the next six months. Entries carry forward from the September 20, 2026 check against each organizer’s own page; events that have since taken place and deadlines that have since passed are removed, and anything previously marked tentative stays marked. Listed soonest-first within each group. Several registration and hotel deadlines fall inside the next three weeks; reconfirm any deadline before you rely on it.

Regulatory meetings (federal and state)

FERC Environmental Review and Compliance for Natural Gas Facilities Seminar – September 29 to October 1, 2026 – Savannah, GA. Free, advance registration required, space limited, priority may be given to first-time attendees. ferc.gov
FERC October Open Commission Meeting – October 15, 2026, 10:00 to 11:00 am EDT – FERC headquarters, Washington, DC, webcast. Reconfirmed this week. ferc.gov
NARUC Fundamentals of Gas Regulation – October 20–22, 2026 – Virtual. Tentative, not reconfirmed this week. naruc.org
Kentucky Safety Connection 2026 (Kentucky PSC with Kentucky 811) – October 20–22, 2026 – Hilton Lexington Downtown, Lexington, KY. Hotel group rate by September 28. kentucky811.org
PHMSA Liquid Pipeline Advisory Committee Meeting – October 21, 2026, 9:00 am to 3:00 pm EST – Virtual. New this week. Registration closes October 17; written comments due October 7. Federal Register notice; register through PHMSA’s PRIMIS meetings system
NARUC Annual Meeting & Education Conference – November 8–11, 2026 – San Juan, PR. Tentative. naruc.org
FERC November Open Commission Meeting – November 19, 2026 – Washington, DC, webcast. ferc.gov
FERC December Open Commission Meeting – December 17, 2026 – Washington, DC, webcast. ferc.gov
NARUC Winter Policy Summit – February 7–10, 2027 – Washington, DC. Tentative. naruc.org

The GPAC and LPAC last met jointly on July 30, 2026, and the comment period on that proceeding closed September 4, 2026. FERC has not yet posted its 2027 open-meeting schedule; it announced the 2026 schedule in October 2025, so January and February 2027 dates should be expected around October and will be added when they post.

Industry association meetings (national, regional, and state)

AGA Policy Forum – September 28–30, 2026 – Dallas, TX. Member restricted. aga.org
AMPP Central Conference – September 28–30, 2026 – Saint Paul RiverCentre, Saint Paul, MN. ampp.org
Alabama Damage Prevention Summit – September 28–30, 2026 – The Lodge at Gulf State Park, Gulf Shores, AL. actsnowinc.com
Georgia 811 Damage Prevention Summit, Braselton – October 1, 2026 – Braselton Civic Center, Braselton, GA. Free. georgia811.com
Ohio Gas Association Regulator Fundamentals Seminar – October 1, 2026 – Union Rural Electric, Marysville, OH. members.ohiogasassoc.org
Gas Machinery Conference (GMC) – October 4–7, 2026 – Indiana Convention Center, Indianapolis, IN. gmrc.org
APGA Public Natural Gas Week – October 4–10, 2026 – nationwide observance. apga.org
NMOGA Annual Meeting (New Mexico Oil & Gas Association) – October 5–7, 2026 – Santa Fe, NM. nmoga.org
AGA/EEI/INGAA Fall Security Conference and related events – October 5–8, 2026 – Louisville, KY. Members and invited guests. aga.org
AGA Operations Fall Committee Meetings, PSMS Workshop and Executive Leadership Safety Summit – October 5–9, 2026 – Louisville, KY. aga.org
WEI Safety Summit (includes a gas safety work methods track) – October 6–8, 2026 – city not yet published by the organizer. westernenergy.org
SGA Line Locator Workshop – October 7, 2026 – TECO Peoples Gas, Tampa, FL. sganaturalgas.org
AGA Fall Communications and Marketing Committee Meeting – October 7–8, 2026 – Washington, DC. aga.org
Texas811 Damage Prevention Summit – October 7–9, 2026 – Galveston Island Convention Center, Galveston, TX. Exhibit hall full. actsnowinc.com
Texas Pipeline Association Board of Directors Meeting – October 8, 2026 – ONEOK, Dallas, TX. texaspipelines.com
API Fall Committee on Petroleum Measurement Standards Meeting – October 12–16, 2026 – Hyatt Regency Austin, Austin, TX. events.api.org
WEI Western Region Mutual Assistance Agreement Annual Meeting – October 13–14, 2026 – city not yet published. westernenergy.org
Pipeline Safety Trust Annual Conference – October 15–16, 2026 (pre-conference October 14) – New Orleans, LA. pstrust.org
Colorado 811 Damage Prevention Summit and Expo – October 16, 2026 – Denver Marriott Tech Center, Denver, CO. Free in 2026. colorado811.org
AGA Executive Conference – October 18–19, 2026 – Irving, TX. Invitation only. aga.org
APGA Fall Board and Committee Meetings – October 18–20, 2026 – Savannah, GA. No cost, advance registration requested. apga.org
DCA Fall Meeting (Distribution Contractors Association) – October 19–21, 2026 – Renaissance Dallas Addison, Addison, TX. Hotel September 28; refund October 5. dcaweb.org
AMPP Eastern Conference: Pipeline Integrity – October 19–21, 2026 – Sheraton Myrtle Beach, Myrtle Beach, SC. ampp.org
API Storage Tank Conference & Expo – October 19–22, 2026 (conference proper October 21–22) – Hyatt Regency Austin, Austin, TX. Exhibit hall sold out. events.api.org
PODS Fall Forum – October 20–21, 2026 (forum October 21) – Topgolf Houston West, Houston, TX. pods.org
APGA Operations Conference – October 20–22, 2026 – Savannah, GA. Early bird ends September 30. apga.org
Mary Kay O’Connor Safety and Risk Conference, incorporating the 29th Process Safety Symposium – October 20–22, 2026 – Sonesta Houston IAH, Houston, TX. mkosymposium.org
New Mexico Damage Prevention Summit – October 20–22, 2026 – Isleta Resort, Albuquerque, NM. Rate rises after September 29. actsnowinc.com
AGA Underground Storage Committee Fall Meeting – October 21–23, 2026 – Park City, UT. aga.org
API Refrigerated Tank Conference (co-located with Storage Tank) – October 22, 2026 – Hyatt Regency Austin, Austin, TX. events.api.org
Northeast Gas Association Fall Operations Conference – October 26–27, 2026 – Saratoga Hilton, Saratoga Springs, NY. Registration closes October 18, late adds $50. northeastgas.org
Louisiana Gas Association Annual Operations Conference – October 26–28, 2026 – DoubleTree by Hilton, Lafayette, LA. Hotel by October 12. louisianagasassociation.org
AGA Gas Piping Technology Committee (GPTC) Winter Meeting – October 26–28, 2026 – Providence, RI. $475 per attendee. aga.org
AGA Best Practices Distribution Capital Construction Oversight Roundtable – October 27–29, 2026 – ONE Gas, Tulsa, OK. Gas utility operators only. aga.org
SGA Transmission Pipeline Design Workshop (Part 192, Mega Rule 1 and 2, rupture-mitigation valves, traceable verifiable and complete records) – October 27–30, 2026 – Williams, Houston, TX. sganaturalgas.org
UDig NY Damage Prevention Conference & Expo, 6th annual – October 28, 2026 – Niagara Falls Convention Center, Niagara Falls, NY. Closes at capacity. udigny.org
SGA Line Locator Workshop – October 28, 2026 – Atmos Energy, Plano, TX. sganaturalgas.org
TXOGA Lone Star Energy Forum – October 28–29, 2026 – JW Marriott San Antonio Hill Country, San Antonio, TX. txoga.org
Fall 2026 EEI/AGA Taxation Committee Meeting – November 1–4, 2026 – Laguna Cliffs Resort, Dana Point, CA. aga.org
Mississippi Damage Prevention Summit (Locate Rodeo November 3) – November 4–6, 2026 – IP Casino Resort, Biloxi, MS. Rises again October 14; hotel October 12. actsnowinc.com
API Fall Refining and Equipment Standards Meeting – November 9–13, 2026 – Hyatt Regency New Orleans, New Orleans, LA. Early registration October 9; hotel October 16. events.api.org
API Cybersecurity Conference for the Oil and Natural Gas Industry, 21st annual – November 10–11, 2026 – Woodlands Waterway Marriott, The Woodlands, TX. Hotel October 19. events.api.org
API Pipeline Information eXchange (PIX) Workshop and Meeting – November 10–11, 2026 – Westin Houston Memorial City, Houston, TX. Presentations due October 23; hotel October 12. events.api.org
Midwest Damage Prevention Training Conference (Indiana 811) – November 10–12, 2026 – French Lick Resort, French Lick, IN. Late registration after October 12. midwest811conference.com
API/AFPM Fall Operating Practices Symposium – November 11, 2026 – Hyatt Regency New Orleans, New Orleans, LA. Early registration October 9; hotel October 16. events.api.org
AMPP Western Conference, Extreme Environments – November 16–18, 2026 – Hyatt Regency Lake Washington, Renton, WA. Advance registration ends October 19; hotel October 26. The organizer’s event page reads November 16–18 while its technical program PDF reads November 15–18; confirm before booking. ampp.org
NGA Energy Future Summit (inaugural) – November 17–18, 2026 – Springfield, MA. Tentative. northeastgas.org
AGA Best Practices DIMP Roundtable – November 17–19, 2026 – Henderson, NV. aga.org
North American Gas Forum – November 30 to December 2, 2026 – Washington, DC. energy-dialogues.com
Texas Gas Association Transmission Roundtable – December 3–4, 2026 – Drury Plaza Riverwalk, San Antonio, TX. Registration not yet open. texasgasassociation.com
International Utility Locate Rodeo (Missouri CGA) – December 7–8, 2026 – Springfield, MO. locaterodeo.net
Missouri CGA VacEx Rodeo – December 9, 2026 – Ozark Empire Fairgrounds, Springfield, MO. mocommonground.org
Missouri CGA Damage Prevention and Excavation Safety Summit – December 9–10, 2026 – Ozark Empire Fairgrounds, Springfield, MO. Free, registration open. mocommonground.org
APGA Winter Board and Committee Meetings – January 25–27, 2027 (January 25 welcome reception) – Washington, DC. Registration opens late fall 2026, no cost. apga.org
PPIM 2027, 39th International Pipeline Pigging and Integrity Management Conference – January 25–28, 2027 – George R. Brown Convention Center, Houston, TX. Abstract deadline was July 8, 2026. ppimconference.com
API Winter Exploration and Production Standards Meeting – January 25–29, 2027 – Hyatt Regency Dallas, Dallas, TX. events.api.org
Texas Gas Association Winter Board and Committee Meetings – January 26–27, 2027 – CPS Energy headquarters, San Antonio, TX. Tentative; the organizer’s site did not render for a full read. texasgasassociation.com
Louisiana Damage Prevention Summit – January 26–28, 2027 – L’Auberge Lake Charles, Lake Charles, LA. $289 through December 1, $329 after, $379 after January 5; hotel by January 3. actsnowinc.com
APGA Legislative Summit – January 27–28, 2027 – Washington, DC. Registration opens late fall 2026. apga.org
Iowa Excavation Safety Summit, 3rd annual – January 28, 2027 – Varied Industries Building, Iowa State Fairgrounds, Des Moines, IA. Free; award nominations due December 31, 2026. iowasafetysummit.com
Great Lakes Damage Prevention Conference & Expo (MISS DIG 811) – February 10–12, 2027 – DeVos Place, Grand Rapids, MI. Hotel cutoff January 11, 2027; call for abstracts open. greatlakes811expo.com
PLCA 79th Annual Convention (Pipe Line Contractors Association) – February 10–14, 2027 – Omni La Costa Resort, Carlsbad, CA. Save the date; registration not yet open. plca.org
SGA Technical Conference on Environmental Permitting and Construction – February 17–19, 2027 – DoubleTree Nashville Downtown, Nashville, TN. Registration not yet open. sganaturalgas.org
DCA 66th Annual Convention – February 22–26, 2027 – Terranea Resort, Rancho Palos Verdes, CA. Registration opens December 1, 2026. members.dcaweb.org
Nebraska Excavation Safety Summit – February 24, 2027 – Sandhills Global Event Center, Lincoln, NE. Free. nebraskasafetysummit.com

Also on the calendar and useful if you train to the rules: SGA runs a compliance-relevant virtual short-course slate through the window, including Safety Assurance and Management Review (October 6), at sganaturalgas.org. One deadline rather than an event: the UESI/ASCE Pipelines 2027 call for abstracts closes October 1, 2026, pipelinesconference.org.

Dropped from last week’s list because they have now passed: the NAPSR National Meeting (September 21–25), the PHMSA summer Research and Development public debrief final session (September 22), the GPA Midstream Convention (September 20–23), the ASME International Pipeline Conference & Expo (September 21–25), the PODS Global Summit (September 22), the Tennessee Gas Association Safety Summit (September 22–24), the SGA Line Locator Workshop in Port Huron (September 23), and the SGA PSMS damage prevention short course (September 22). Deadlines dropped because they have passed: the AMPP Eastern Conference advance registration (September 21) and hotel cutoff (September 25), the API Storage Tank hotel cutoff (September 25), and the API Cybersecurity Conference early registration (September 25). This list is refreshed weekly from our own events watchlist and will keep expanding as additional winter dates post.

Operator-type key: GT = gas transmission · GD = gas distribution · GG = gas gathering · HL = hazardous liquid · LNG = liquefied natural gas · UNGS = underground natural gas storage · MM = master meter · CO2 = carbon dioxide.

This post is a neutral, plain-language summary of the cited public sources, not legal advice or an SC analysis or interpretation. Applicability shown is drawn from each rule’s own scope. Confirm specifics against the linked source. Portions of this post were prepared with AI assistance and reviewed before publication.

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