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Rulemaking Documents

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
Date Subject Part
03/21/2017 Hazardous Materials: Volatility of Unrefined Petroleum Products and Class 3 Materials 171 172 173 174 177 178 179 180
01/23/2017 Pipeline Safety: Operator Qualification, Cost Recovery, Accident and Incident Notification, and Other Pipeline Safety Changes 190 191 192 195 199
01/19/2017 Hazardous Materials: FAST Act Requirements for Real-Time Train Consist Information by Rail 174
01/18/2017 Hazardous Materials: Volatility of Unrefined Petroleum Products and Class 3 Materials 171 172 173 174 177 178 179 180
12/19/2016 Pipeline Safety: Safety of Underground Natural Gas Storage Facilities 191 192
12/05/2016 Hazardous Materials: Notification of the Pilot-in-Command and Response to Air Related Petitions for Rulemaking (RRR) 172 175
11/22/2016 Pipeline Safety: Meeting of the Gas Pipeline Safety Advisory Committee 192
11/21/2016 Hazardous Materials: PIPES Act Requirements for Identification Numbers on Cargo Tanks Containing Petroleum Based Fuel 172
10/21/2016 Pipeline Safety: Expanding the Use of Excess Flow Valves in Gas Distribution Systems to Applications Other Than Single-Family Residences 192
10/14/2016 Pipeline Safety: Enhanced Emergency Order Procedures 190
10/14/2016 Pipeline Safety: Expanding the Use of Excess Flow Valves in Gas Distribution Systems to Applications Other Than Single-Family Residences 192
10/11/2016 Hazardous Materials: Revisions to Hazardous Materials Grants Requirements (RRR) 110
09/07/2016 Hazardous Materials: Harmonization With International Standards (RRR) 107 171 172 173 175 176 178 180
08/16/2016 Pipeline Safety: Clarification of Terms Relating to Pipeline Operational Status 192 195
08/15/2016 Hazardous Materials: FAST Act Requirements for Flammable Liquids and Rail Tank Cars 173 179
07/29/2016 Hazardous Materials: Oil Spill Response Plans and Information Sharing for High-Hazard Flammable Trains 130 171 173 174
07/26/2016 Hazardous Materials: Miscellaneous Amendments Pertaining to DOT-Specification Cylinders (RRR) 107 171 172 173 178 180
06/30/2016 Pipeline Safety: Inflation Adjustment of Maximum Civil Penalties 190
06/30/2016 Hazardous Materials: Miscellaneous Petitions for Rulemaking (RRR) 171 172 173 176 178 180
06/29/2016 Hazardous Materials: Revision of Maximum and Minimum Civil Penalties 107 171
06/02/2016 Hazardous Materials: Miscellaneous Amendments (RRR) 107 171 172 173 175 176 177 178 179 180
05/27/2016 Hazardous Materials Table, Special Provisions, Hazardous Materials Communications, Emergency Response Information, Training Requirements, and Security Plans 172
05/19/2016 Hazardous Materials: Carriage of Battery-Powered Electronic Smoking Devices in Passenger Baggage 175
05/16/2016 Hazardous Materials: Incorporation by Reference Edition Update for the American Society of Mechanical Engineers Boiler and Pressure Vessel Code and Transportation Systems for Liquids and Slurries: Pressure Piping Code 171 173 178
05/13/2016 Pipeline Safety: Safety of Gas Transmission and Gathering Pipelines 191 192
05/11/2016 Pipeline Safety: Meeting of the Gas Pipeline Safety Advisory Committee and the Liquid Pipeline Safety Advisory Committee 190 191 192 195 199
04/29/2016 Hazardous Materials: Incorporation by Reference Edition Update for the American Society of Mechanical Engineers Boiler and Pressure Vessel Code and Transportation Systems for Liquids and Slurries: Pressure Piping Code 171 173 178
04/29/2016 Hazardous Materials: Incorporation of ASME Code Section XII and the National Board Inspection Code 107 171 173 178 179 180
04/25/2016 Hazardous Materials Table, Special Provisions, Hazardous Materials Communications, Emergency Response Information, Training Requirements, and Security Plans 172
04/08/2016 Pipeline Safety: Safety of Gas Transmission and Gathering Pipelines 191 192
03/31/2016 Hazardous Materials: Reverse Logistics (RRR) 171 173
01/21/2016 Hazardous Materials: Adoption of Special Permits (MAP-21) (RRR) 107 171 172 173 174 176 177 178 180
01/08/2016 Pipeline Safety: Notice of Liquid Pipeline Advisory Committee Meeting 195
12/30/2015 Hazardous Materials: Safety Requirements for External Product Piping on Cargo Tanks Transporting Flammable Liquids 173
12/21/2015 Hazardous Materials: Requirements for the Safe Transportation of Bulk Explosives (RRR) 171 172 173 177
11/30/2015 Pipeline Safety: Notice of Gas Pipeline Advisory Committee Meeting 195
11/23/2015 Hazardous Materials: Editorial Corrections and Clarifications (RRR) 171 172 173 175 176 177 178 180
11/18/2015 Hazardous Materials: Enhanced Tank Car Standards and Operational Controls for High-Hazard Flammable Trains 171 172 173 174 179
10/30/2015 Hazardous Materials: Carriage of Battery-Powered Electronic Smoking Devices in Passenger Baggage 175
10/13/2015 Pipeline Safety: Safety of Hazardous Liquid Pipelines 195
09/30/2015 Pipeline Safety: Miscellaneous Changes to Pipeline Safety Regulations: Response to Petitions for Reconsideration 192
09/10/2015 Hazardous Materials: Special Permit and Approvals Standard Operating Procedures and Evaluation Process 105 107 171
08/06/2015 Pipeline Safety: Periodic Updates of Regulatory References to Technical Standards and Miscellaneous Amendments; Corrections 192 193 195
08/06/2015 Pipeline Safety: Miscellaneous Changes to Pipeline Safety Regulations; Administrative Significance: Petitions for Reconsideration 191 192 195
07/23/2015 Pipeline Safety: Pipeline Damage Prevention Programs 196 198
07/15/2015 Pipeline Safety: Expanding the Use of Excess Flow Valves in Gas Distribution Systems to Applications Other Than Single-Family Residences 192
07/10/2015 Pipeline Safety: Operator Qualification, Cost Recovery, Accident and Incident Notification, and Other Pipeline Safety Proposed Changes 190 191 192 195 199
05/21/2015 Pipeline Safety: Plastic Pipe Rule 192
05/08/2015 Hazardous Materials: Enhanced Tank Car Standards and Operational Controls for High-Hazard Flammable Trains 171 172 173 174 179
04/02/2015 Clarification on Policy for Additional Name Requests Regarding Fireworks 173