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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 51 - 100 of 875
  • 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,...
  • PHMSA, in coordination with the Federal Railroad Administration (FRA), is proposing changes to the Hazardous Materials Regulations to allow for the bulk transport of Methane, refrigerated liquid, commonly known as liquefied natural gas (LNG), in rail...
  • On October 14, 2016, PHMSA published an interim final rule (IFR) issuing temporary emergency order procedures and requesting public comment. This final rule adopts, with modifications, that IFR implementing the emergency order authority conferred on...
  • PHMSA is revising the Federal Pipeline Safety Regulations to improve the safety of onshore gas transmission pipelines. This final rule addresses congressional mandates, National Transportation Safety Board recommendations, and responds to public input....
  • In response to congressional mandates, NTSB and GAO recommendations, lessons learned, and public input, PHMSA is amending the Pipeline Safety Regulations to improve the safety of pipelines transporting hazardous liquids. Specifically, PHMSA is...
  • This rulemaking responds to numerous petitions for rulemaking submitted by the regulated community that request PHMSA address a variety of provisions, including but not limited to those addressing packaging, hazardous communication, and incorporation...
  • PHMSA is proposing to revise requirements on the requalification period for certain DOT 4-series specification cylinders in non-corrosive gas service in response to a petition for rulemaking submitted by the National Propane Gas Association. This...
  • In accordance with the Federal Civil Penalties Inflation Adjustment Act Improvements Act of 2015, this final rule provides the 2019 inflation adjustment to civil penalty amounts that may be imposed for violations of certain DOT regulations.
  • This final rule makes minor technical corrections to the OST, FAA, FTA, and PHMSA regulations governing drug testing for safety- sensitive employees to ensure consistency with the recent amendments made to the Department of Transportation's regulation,...
  • PHMSA is announcing its exercise of enforcement discretion with respect to portions of its regulations that pertain to farm taps. Pursuant to the exercise of enforcement discretion announced in this document, PHMSA will not take enforcement action...
  • PHMSA issues this interim final rule (IFR) to revise the Hazardous Materials Regulations for lithium cells and batteries transported by aircraft. This IFR prohibits the transport of lithium ion cells and batteries as cargo on passenger aircraft;...
  • PHMSA, in consultation with the Federal Railroad Administration and pursuant to the Fixing America's Surface Transportation Act (FAST Act) of 2015, issues this final rule to revise and clarify requirements for comprehensive oil spill response plans...
  • PHMSA is revising the Hazardous Materials Regulations pertaining to the Hazardous Materials Grants Program and the Hazardous Materials Emergency Preparedness Grant. This final rule aligns with the Office of Management and Budget's Uniform...
  • In accordance with the Federal Civil Penalties Inflation Adjustment Act Improvements Act of 2015, this final rule provides the 2018 inflation adjustment to civil penalty amounts that may be imposed for violations of certain DOT regulations. This rule...
  • The Pipeline and Hazardous Materials Safety Administration (PHMSA) proposes to amend the Hazardous Materials Regulations (HMR) to maintain alignment with international regulations and standards by incorporating various amendments, including changes to...
  • PHMSA is amending the Federal Pipeline Safety Regulations that govern the use of plastic piping systems in the transportation of natural and other gas. These amendments are necessary to enhance pipeline safety, adopt innovative technologies and best...
  • PHMSA is publishing this document to seek public comments on frequently asked questions (FAQs) developed to provide guidance on what constitutes sufficient justification for an operator to request a 6- month extension to a gas pipeline's 7-year...
  • In this rulemaking, PHMSA is amending the Hazardous Materials Regulations in response to 19 petitions for rulemaking submitted by the regulated community to update, clarify, streamline, or provide relief from miscellaneous regulatory requirements. By...
  • PHMSA, in consultation with the Federal Aviation
  • The Pipeline and Hazardous Materials Safety Administration, in coordination with the Federal Railroad Administration, is issuing this final rule to remove requirements pertaining to electronically controlled pneumatic brake systems on high-hazard...
  • PHMSA is seeking public comment on its existing class location requirements for natural gas transmission pipelines as they pertain to actions operators are required to take following class location changes due to population growth near the pipeline....
  • PHMSA issues this rulemaking in response to appeals submitted to a previously-published final rule. On June 2, 2016, PHMSA published a final rule that made miscellaneous amendments to the Hazardous Materials Regulations. This final rule specifically...
  • This request for information notice replaces the version published in the Federal Register on March 22, 2018 (83 FR 12529), to make technical corrections to the prior version. The Pipeline and Hazardous Materials Safety Administration (PHMSA) requests...
  • The Pipeline and Hazardous Materials Safety Administration (PHMSA) requests information on matters related to the development and potential use of automated technologies for surface modes (i.e., highway and rail) in hazardous materials transportation....
  • In this document, the Department of Transportation is announcing that after careful review, and as mandated by Section 7311 of the Fixing America's Surface Transportation (FAST) Act, the Department of Transportation has reviewed the final updated...
  • The Pipeline and Hazardous Materials Safety Administration (PHMSA) is announcing an additional opportunity for the public to comment on an interim final rule (IFR) titled: ``Pipeline Safety: Underground Natural Gas Storage Facilities.'' PHMSA is...
  • This document provides notice that PHMSA and the Federal Railroad Administration (FRA) are publishing a revised Regulatory Impact Analysis (RIA) updating the original RIA associated with the electronically controlled pneumatic (ECP) brake provision of...