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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, affecting 49 CFR 100-199, and about Motor carriers
Results 1 - 50 of 85
  • 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...
  • 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 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...
  • The Pipeline and Hazardous Materials Safety Administration (PHMSA) proposes to amend the Hazardous Materials Regulations (HMR) to maintain consistency with international regulations and standards by incorporating various amendments, including changes...
  • In response to petitions for rulemaking submitted by the regulated community, PHMSA proposes to amend the Hazardous Materials Regulations (HMR; 49 CFR parts 171 through 180) to update, clarify, or provide relief from miscellaneous regulatory...
  • In this final rule, the Pipeline and Hazardous Materials Safety Administration (PHMSA) is amending the Hazardous Materials Regulations (HMR) to make miscellaneous amendments in order to update and clarify certain regulatory requirements. These...
  • This SNPRM proposes to incorporate and allow the use of the 2015 edition of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code, Section XII--Rules for Construction and Continued Service of Transport Tanks for the...
  • As required by the Moving Ahead for Progress in the 21st Century Act (MAP-21), the Pipeline and Hazardous Materials Safety Administration is amending the Hazardous Materials Regulations to adopt provisions contained in certain widely-used or...
  • This final rule corrects editorial errors, makes minor regulatory changes and, in response to requests for clarification, improves the clarity of certain provisions in the Hazardous Materials Regulations. The intended effect of this rule is to enhance...
  • As required by the Moving Ahead for Progress in the 21st Century Act (MAP-21), the Pipeline and Hazardous Materials Safety Administration is proposing to amend the Hazardous Materials Regulations to adopt provisions contained in certain widely-used or...
  • PHMSA proposes to make miscellaneous amendments to the Hazardous Materials Regulations to update and clarify certain regulatory requirements. These proposed amendments are designed to promote safer transportation practices, address petitions for...
  • PHMSA is amending the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions, packaging...
  • PHMSA proposes to amend the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions,...
  • PHMSA, in coordination with the Nuclear Regulatory Commission (NRC), is amending requirements in the Hazardous Materials Regulations (HMR) governing the transportation of Class 7 (radioactive) materials based on recent changes contained in the...
  • FMCSA and PHMSA amend the Federal Motor Carrier Safety Regulations (FMCSRs) and Hazardous Materials Regulations (HMRs), respectively, to prohibit a driver of a commercial motor vehicle or of a motor vehicle transporting certain hazardous materials or...
  • PHMSA is amending the Hazardous Materials Regulations (HMR) to make miscellaneous amendments to update and clarify certain regulatory requirements. These amendments promote safer transportation practices, eliminate unnecessary regulatory requirements,...
  • The Pipeline and Hazardous Materials Safety Administration is amending the Hazardous Materials Regulations to incorporate provisions contained in certain widely used or longstanding rail special permits that have general applicability and established...
  • PHMSA proposes to make miscellaneous amendments to the Hazardous Materials Regulations to update and clarify certain regulatory requirements. These proposed amendments are designed to promote safer transportation practices; eliminate unnecessary...
  • FMCSA and PHMSA are amending the Federal Motor Carrier Safety Regulations (FMCSRs) and the Hazardous Materials Regulations (HMR) to restrict the use of hand-held mobile telephones by drivers of commercial motor vehicles (CMVs). This rulemaking will...
  • The Pipeline and Hazardous Materials Safety Administration is proposing to amend the Hazardous Materials Regulations to incorporate provisions contained in certain widely used or longstanding special permits that have general applicability and...
  • PHMSA, in coordination with the Nuclear Regulatory Commission (NRC), is proposing to amend requirements in the Hazardous Materials Regulations (HMR) governing the transportation of Class 7 (radioactive) materials based on recent changes contained in...
  • In this final rule, PHMSA, in coordination with the Federal Motor Carrier Safety Administration (FMCSA), is approving the use of the National Fire Protection Association Standard (NFPA) 498--Standard for Safe Havens and Interchange Lots for Vehicles...
  • The Pipeline and Hazardous Materials Safety Administration (PHMSA) proposes to restrict the use of hand-held mobile telephones, including hand-held cell phones, by drivers during the operation of a motor vehicle containing a quantity of hazardous...
  • The Pipeline and Hazardous Materials Safety Administration (PHMSA) is prohibiting texting on electronic devices by drivers during the operation of a motor vehicle containing a quantity of hazardous materials requiring placarding or any quantity of a...
  • FMCSA and PHMSA propose to amend the Federal Motor Carrier Safety Regulations (FMCSRs) and Hazardous Materials Regulations (HMRs), respectively, to prohibit a motor vehicle driver from entering onto a highway-rail grade crossing unless there is...
  • PHMSA is amending the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions, packaging...
  • The Pipeline and Hazardous Materials Safety Administration (PHMSA) proposes to prohibit texting on electronic devices by drivers during the operation of a motor vehicle containing a quantity of hazardous materials requiring placarding under part 172 of...
  • This final rule corrects editorial errors, makes minor regulatory changes and, in response to requests for clarification, improves the clarity of certain provisions in the Hazardous Materials Regulations. The intended effect of this rule is to enhance...
  • PHMSA proposes to amend the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions,...
  • PHMSA, in coordination with the Federal Motor Carrier Safety Administration (FMCSA), is proposing to enhance existing attendance requirements for explosives stored during transportation by designating the National Fire Protection Association (NFPA)...
  • The Pipeline and Hazardous Materials Safety Administration is amending the Hazardous Materials Regulations to incorporate provisions contained in certain widely used or longstanding special permits that have an established safety record. Special...
  • The Pipeline and Hazardous Materials Safety Administration is proposing to amend the Hazardous Materials Regulations to incorporate provisions contained in certain widely used or longstanding special permits that have an established safety record....
  • This final rule corrects editorial errors, makes minor regulatory changes and, in response to requests for clarification, improves the clarity of certain provisions in the Hazardous Materials Regulations. The intended effect of this rule is to enhance...
  • PHMSA is amending the Hazardous Materials Regulations to revise certain requirements applicable to the manufacture, maintenance, and use of DOT and MC specification cargo tank motor vehicles, DOT specification cylinders and UN pressure receptacles. The...
  • This final rule corrects editorial errors, makes minor regulatory changes and, in response to requests for clarification, improves the clarity of certain provisions in the Hazardous Materials Regulations (HMR). The intended effect of this rule is to...
  • PHMSA is amending the Hazardous Materials Regulations to update, clarify or provide relief from certain requirements governing the classification, packaging, or labeling of hazardous materials transported in commerce. Among other provisions, PHMSA is...
  • This final rule corrects editorial errors, makes minor regulatory changes and, in response to requests for clarification, improves the clarity of certain provisions in the Hazardous Materials Regulations (HMR). The intended effect of this rule is to...
  • PHMSA proposes to amend the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) to revise certain requirements applicable to the manufacture, maintenance, and use of DOT and MC specification cargo tank motor vehicles, DOT specification...
  • This final rule revises the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions,...
  • PHMSA proposes to make miscellaneous amendments to the Hazardous Materials Regulations based on petitions for rulemaking and PHMSA initiatives. These proposed amendments are intended to update, clarify or provide relief from certain regulatory...
  • This final rule corrects editorial errors, makes minor regulatory changes and, in response to requests for clarification, improves the clarity of certain provisions in the Hazardous Materials Regulations (HMR). The intended effect of this rule is to...
  • PHMSA proposes to amend the Hazardous Materials Regulations to maintain alignment with international standards by incorporating various amendments, including changes to proper shipping names, hazard classes, packing groups, special provisions,...
  • In this final rule, PHMSA is amending the Hazardous Materials Regulations (HMR) to adopt standards for the design, construction, maintenance and use of cylinders and multiple-element gas containers based on the standards contained in the United Nations...
  • This final rule revises terminology, definitions, and requirements for consistency with the Hazardous Materials Safety and Security Reauthorization Act of 2005. These amendments include revising the definitions of ``hazmat employee'' and ``hazmat...
  • This final rule corrects editorial errors, makes minor regulatory changes and, in response to requests for clarification, improves the clarity of certain provisions in the Hazardous Materials Regulations (HMR). In addition, this final rule revises...
  • On December 20, 2004, the Research and Special Programs Administration (RSPA)--the predecessor agency to the Pipeline and Hazardous Materials Safety Administration (PHMSA)--published a final rule under Docket Number RSPA-04-17036 (HM-215G) amending the...
  • This final rule amends the Hazardous Materials Regulations by incorporating miscellaneous changes based on petitions for rulemaking and PHMSA initiatives. The intended effect of these regulatory changes is to update, clarify or provide relief from...
  • PHMSA proposes to amend the Hazardous Materials Regulations (HMR) to adopt standards for the design, construction, maintenance and use of cylinders and multiple-element gas containers (MEGCs) based on the standards contained in the United Nations (UN)...
  • This final rule amends the Hazardous Materials Regulations by incorporating into the regulations the provisions of certain widely used exemptions which have established a history of safety and which may be converted into regulations for general use. We...
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