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Pipeline and Hazardous Materials Safety Administration

4 documents across 3 days of the archive, 0 of them final rules. The five most recent days are below.

Dates this agency has set that have not yet arrived

What is in this list

Comment deadlines and effective dates from anything this agency published in the archive, still ahead of 11 September 2026.

Dates set before this archive began are not here, and their absence is not evidence that none exist.

as_of

  1. +28d Comments close Gexcon U.S., Inc.'s Petition for EFFECTS Version 12.2.0 as an Alternative Model for Calculating the Vapor-Gas Dispersion Exclusion Zone Transportation Department · Pipeline and Hazardous Materials Safety Administration

10 September 2026 1 document

Machine-written from the fields above · claude-haiku-4-5-20251001

The Pipeline and Hazardous Materials Safety Administration published a notice that the Federal Hazardous Materials Transportation Act preempts California's reusability mandate for propane cylinders.

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NoticeTransportation DepartmentPipeline and Hazardous Materials Safety Administration

Hazardous Materials: California's Reusability Mandate for Propane Cylinders

The Federal Hazardous Materials Transportation Act (HMTA), 49 U.S.C. 5101 et seq., preempts California's reusability mandate for propane cylinders in California Public Resources Code, Sections 42395- 42395.2. The reusability mandate imposes localized design and manufacturing requirements on a container that is represented, marked, certified, or sold as qualified for use in the transportation of a hazardous material--specifically, propane--that are not substantively the same as the requirements in the HMR. The reusability mandate is also an obstacle to accomplishing and carrying out the HMTA. By banning a federally authorized, safety-compliant packaging based on localized waste management preferences, California creates a fragmented regulatory patchwork that undermines the primacy and uniformity of the Federal transportation safety framework.

91 FR 57684FR Doc. 2026-18501official PDFfederalregister.gov

9 September 2026 2 documents

No sentence for this date — either it has not been generated yet, or it was withheld by the fidelity gate.

NoticeTransportation DepartmentPipeline and Hazardous Materials Safety Administration

Hazardous Materials: Notice of Administrative Determination of Preemption for Common Law Tort Claims Concerning the Transportation of Gasoline

The Exxon Mobil Corporation (Exxon) seeks a determination that Federal law preempts State common law claims brought against it in New Jersey concerning the safe transportation of gasoline in commerce. PHMSA is issuing a final administrative determination concluding that the State common law tort claims presented by Exxon are preempted. Each of these duties, if imposed, would present an obstacle to compliance with the Federal regulatory framework essential for the safe transportation of gasoline. In addition, any claims about covered subjects, such as the marking, loading and unloading, and classification of gasoline that are not substantively the same as the applicable HMR provisions are preempted.

91 FR 57439FR Doc. 2026-18382official PDFfederalregister.gov

NoticeTransportation DepartmentPipeline and Hazardous Materials Safety Administration

Gexcon U.S., Inc.'s Petition for EFFECTS Version 12.2.0 as an Alternative Model for Calculating the Vapor-Gas Dispersion Exclusion Zone

PHMSA is publishing this notice and a draft letter of decision to solicit public comment on a petition for approval that would authorize the use of an alternate flammable vapor-gas dispersion model in connection with the siting of liquefied natural gas (LNG) facilities.

  • Comments close in 28 days

91 FR 57446FR Doc. 2026-18346official PDFfederalregister.gov

1 September 2026 1 document

Machine-written from the fields above · claude-haiku-4-5-20251001

The Pipeline and Hazardous Materials Safety Administration reopened the public comment period until September 4, 2026, for joint advisory committee proceedings on thirteen pipeline safety proposed rules.

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NoticeTransportation DepartmentPipeline and Hazardous Materials Safety Administration

Pipeline Safety: Joint Meeting of the Gas and Liquid Pipeline Advisory Committees

On July 17, 2026, PHMSA published a Federal Register notice titled: "Pipeline Safety: Joint Meeting of the Gas and Liquid Pipeline Advisory Committees," which provided an opportunity for public comment by August 31, 2026, on the proceedings of the Gas and Liquid Pipeline Advisory Committees meeting related to 13 notices of proposed rulemakings (NPRM). These proposed rules covered topics such as special permit conditions, in-plant piping, incidental gathering lines, coating damage assessments, atmospheric corrosion, class change pressure tests, maximum allowable operating pressure reconfirmation, operator identification notifications, limitations on welding, remote valves, the property damage definition, right-of-way patrols, and reporting deadlines. PHMSA received requests from stakeholders to extend the comment period. Based on those requests, PHMSA is reopening the comment period for the joint Pipeline Advisory Committee (PAC) proceedings related to the 13 regulatory modernizing NPRMs to September 4, 2026.

  • Comments close 7 days ago

91 FR 56282FR Doc. 2026-17890official PDFfederalregister.gov

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