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Rulemaking Documents Search

The following DOT Rules are linked to the Federal Register website. The Federal Register is the Federal Government’s official daily publication of rules, proposed rules, and notices of federal agencies, and provides a forum for public participation in the democratic process.

To learn more about DOT Rules, choose a document type, topic, or conduct a title search by keyword. Results will include a summary of the Rule and a link to the PDF of the appropriate Federal Register page. The Federal Register provides rulemaking documents dating back to 1995.

If you need to see rules prior to 1995, please visit our rulemakings archives:

Hazardous Materials Safety Rulemaking Archive

Pipeline Safety Rulemaking Archive
Your search for Documents of type Rule or Proposed Rule and affecting 49 CFR 100-199
Results 1 - 50 of 853
  • PHMSA is publishing this ANPRM to solicit feedback on potential adjustments to the statutorily mandated hazardous materials registration and fee assessment program. Actions such as the potential adjustment of fees or the addition of other entities...
  • PHMSA, in coordination with the Nuclear Regulatory Commission, proposes to amend the Hazardous Materials Regulations to maintain alignment with international regulations and standards governing the transportation of Class 7 radioactive materials....
  • PHMSA incorporates more than 80 voluntary, consensus, industry technical standards by reference within the Federal pipeline safety regulations (PSRs). This notice of proposed rulemaking (NPRM) proposes amendments that would incorporate by reference all...
  • PHMSA is revising the Federal Pipeline Safety Regulations to improve the safety of onshore gas transmission pipelines. This final rule addresses several lessons learned following the Pacific Gas and Electric Company incident that occurred in San Bruno,...
  • The Pipeline and Hazardous Materials Safety Administration is correcting a final rule that was published in the Federal Register on July 26, 2022. The final rule was published to maintain alignment with international regulations and standards by...
  • PHMSA is amending the Hazardous Materials Regulations (HMR) to maintain alignment with international regulations and standards by adopting various amendments, including changes to proper shipping names, hazard classes, packing groups, special...
  • PHMSA is issuing corrections of certain changes to incident and annual reporting requirements for offshore gathering pipelines in its November 15, 2021, final rule titled ``Safety of Gas Gathering Pipelines: Extension of Reporting Requirements,...
  • PHMSA is incorporating within its regulations language noting its employees' ability to refer actual or possible criminal activity in connection with PHMSA's jurisdictional statutes directly to the DOT Office of Inspector General (OIG).
  • PHMSA is alerting the public to its April 1, 2022, response denying a petition for reconsideration of the final rule titled ``Safety of Gas Gathering Pipelines: Extension of Reporting Requirements, Regulation of Large, High-Pressure Lines, and Other...
  • PHMSA is revising the Federal Pipeline Safety Regulations applicable to most newly constructed and entirely replaced onshore gas transmission, Type A gas gathering, and hazardous liquid pipelines with diameters of 6 inches or greater. In the revised...
  • This final rule provides the statutorily-prescribed 2022 adjustment to civil penalty amounts that may be imposed for violations of certain DOT regulations. In addition, this rule notes new DOT civil penalties authority provided in the Bipartisan...
  • PHMSA is amending the pipeline safety regulations to explicitly state that certain coastal waters, the Great Lakes, and coastal beaches are classified as unusually sensitive areas for the purpose of compliance with the hazardous liquid integrity...
  • PHMSA is revising the Federal Pipeline Safety Regulations to improve the safety of onshore gas gathering pipelines. This final rule addresses Congressional mandates, Government Accountability Office recommendations, and public input received as part of...
  • PHMSA, in coordination with the Federal Railroad Administration (FRA), proposes to amend the Hazardous Materials Regulations to suspend authorization of liquefied natural gas (LNG) transportation in rail tank cars pursuant to a final rule published in...
  • PHMSA proposes to amend the Hazardous Materials Regulations to maintain alignment with international regulations and standards by adopting various amendments, including changes to proper shipping names, hazard classes, packing groups, special...
  • In accordance with the Federal Civil Penalties Inflation Adjustment Act Improvements Act of 2015, DOT published a final rule on May 3, 2021 to provide the 2021 inflation adjustment to civil penalty amounts that may be imposed for violations of certain...
  • In accordance with the Federal Civil Penalties Inflation Adjustment Act Improvements Act of 2015, this final rule provides the 2021 inflation adjustment to civil penalty amounts that may be imposed for violations of certain DOT regulations. In...
  • This final rule removes the Department's internal policies and procedures relating to the issuance of rulemaking and guidance documents from the Code of Federal Regulations. In addition, this final rule removes regulations concerning the initiation and...
  • In accordance with the memorandum of January 20, 2021, from the Assistant to the President and Chief of Staff, titled ``Regulatory Freeze Pending Review,'' PHMSA delays the effective date of the final rule, ``Pipeline Safety: Gas Pipeline Regulatory...
  • PHMSA is correcting its Gas Pipeline Regulatory Reform final rule that published in the Federal Register on January 11, 2021. The rule makes miscellaneous changes to the regulatory requirements for gas pipeline systems.
  • PHMSA is proposing to incorporate by reference more than 20 consensus standards into the Federal pipeline safety regulations. This notice of proposed rulemaking (NPRM) would incorporate by reference a new, updated, or reaffirmed edition of each...
  • PHMSA is making available for public comment a revised set of operator qualification frequently asked questions (FAQs) that will replace its current operator qualification FAQs. The proposed revisions will provide greater clarity regarding PHMSA's...
  • PHMSA is seeking public comment on a second set of draft frequently asked questions (Batch-2 FAQs) to facilitate implementation of its final rule titled ``Safety of Gas Transmission Pipelines: MAOP Reconfirmation, Expansion of Assessment Requirements,...
  • In accordance with the Federal Civil Penalties Inflation Adjustment Act Improvements Act of 2015, this final rule provides the 2020 inflation adjustment to civil penalty amounts that may be imposed for violations of certain DOT regulations. In...
  • PHMSA is amending the Federal Pipeline Safety Regulations to ease regulatory burdens on the construction, maintenance, and operation of gas transmission, distribution, and gathering pipeline systems without adversely affecting safety. The amendments in...
  • PHMSA is amending the Hazardous Materials Regulations (HMR) to revise certain requirements applicable to the manufacture, use, and requalification of DOT-specification cylinders. PHMSA is taking this action in response to petitions for rulemaking...
  • This final rule corrects editorial errors and improves the clarity of certain provisions in the Hazardous Materials Regulations and PHMSA program and procedural regulations. The intended effect of this rulemaking is to enhance the accuracy and reduce...
  • PHMSA published a notification in the Federal Register seeking public comments on a document titled ``Pipeline Safety: Midstream Facilities Frequently Asked Questions.'' PHMSA has received a request to extend the comment period to allow stakeholders...
  • The Pipeline and Hazardous Materials Safety Administration (PHMSA) is amending the Hazardous Materials Regulations in response to 24 petitions for rulemaking submitted by the regulated community between February 2015 and March 2018. This final rule...
  • PHMSA is making available for comment a set of draft frequently asked questions (FAQs) regarding federal oversight of midstream processing facilities. Specifically, this guidance will delineate where PHMSA and the Occupational Safety and Health...
  • The Pipeline and Hazardous Materials Safety Administration (PHMSA) is amending the requirements of the requalification periods for certain Department of Transportation (DOT) 4-series specification cylinders in non-corrosive gas service in response to a...
  • In response to public input received as part of the rulemaking process, PHMSA is proposing to revise the Federal Pipeline Safety Regulations to amend the requirements for gas transmission pipeline segments that experience a change in class location....
  • PHMSA, in coordination with the Federal Railroad Administration (FRA), is amending the Hazardous Materials Regulations (HMR) to allow for the bulk transport of ``Methane, refrigerated liquid,'' commonly known as liquefied natural gas (LNG), in rail...
  • The Pipeline and Hazardous Materials Safety Administration (PHMSA) published a final rule in the Federal Register on February 12, 2020, amending PHMSA's regulations establishing minimum safety standards for underground natural gas storage facilities....
  • This document responds to a joint Petition for Reconsideration (Petition) that was submitted on October 31, 2019, by the American Gas Association, the American Petroleum Institute, the American Public Gas Association, and the Interstate Natural Gas...
  • PHMSA is seeking comments on proposed amendments to the Federal Pipeline Safety Regulations that are intended to ease regulatory burdens on the construction, maintenance and operation of gas transmission, distribution, and gathering pipeline systems....
  • PHMSA is withdrawing the January 18, 2017, ANPRM concerning vapor pressure for crude oil transported by rail. PHMSA's decision is based on comments received to the ANPRM, as well as an extensive study conducted by the Sandia National Laboratories which...
  • PHMSA is issuing this final rule to amend the Hazardous Materials Regulations (HMR) to maintain alignment with international regulations and standards by incorporating various amendments, including changes to proper shipping names, hazard classes,...
  • The Pipeline and Hazardous Materials Safety Administration (PHMSA) is making available for comment a set of proposed frequently asked questions (FAQs) regarding individual service lines directly connected to production, gathering, or transmission...
  • PHMSA is soliciting public comment on proposed amendments to the Federal Pipeline Safety Regulations for the safety of hazardous liquid pipelines that would revise the requirements for facility response plans, revise the definition for accidents, and...
  • The Pipeline and Hazardous Materials Safety Administration is publishing this final rule to amend its minimum safety standards for underground natural gas storage facilities (UNGSFs). On December 19, 2016, PHMSA issued an interim final rule (IFR)...
  • PHMSA is proposing to revise the Pipeline Safety Regulations applicable to newly constructed and entirely replaced onshore natural gas transmission and hazardous liquid pipelines to mitigate ruptures. Additionally, PHMSA is revising the regulations...
  • This document announces a public meeting for Pipeline Safety officials to discuss with pipeline safety stakeholders the implementation of the gas transmission and the hazardous liquid pipeline final rules published in the Federal Register on October 1,...
  • This final rule sets forth a comprehensive revision and update of the Department's regulations on rulemaking procedures and consolidates all of the Department's existing administrative procedures in one location. This final rule also incorporates and...
  • On October 24, 2019, PHMSA published a notice of proposed rulemaking (NPRM), entitled ``Hazardous Materials: Liquefied Natural Gas by Rail (HM-264)'' proposing changes to the Hazardous Materials Regulations to allow for the bulk transport of Methane,...
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