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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 rulesmaking documents dating back to 1995.

If you need to see rules prior to 1995, please contact:

Office of Hazardous Materials Safety: 202-366-4488

Office of Pipeline Safety: 202-366-4595
Date Subject Part
07/12/2011 Pipeline Safety; Enforcement Proceedings Involving an Informal Hearing 190
06/29/2011 Clarification of the Fireworks Approvals Policy 173
06/28/2011 Notification of Anticipated Delay in Administrative Appeal Decisions 105 107 109 171 172 173 174 175 176 178 180
06/27/2011 Hazardous Materials: Revision to the List of Hazardous Substances and Reportable Quantities 172
06/16/2011 Pipeline Safety: Control Room Management/Human Factors 192 195
06/07/2011 Hazardous Materials: Requirements for Storage of Explosives During Transportation 171 177
05/26/2011 Specifications for Packagings 178
05/17/2011 Pipeline Safety: National Pipeline Mapping System Data Submissions and Submission Dates for Gas Transmission and Gathering Systems and Liquefied Natural Gas Annual Reports 191 192 193 195
05/11/2011 Hazardous Materials: Cargo Tank Motor Vehicle Loading and Unloading Operations 172 177
05/05/2011 Pipeline Safety: Applying Safety Regulations to All Rural Onshore Hazardous Liquid Low-Stress Lines 195
04/29/2011 Hazardous Materials: Restricting the Use of Cellular Phones by Drivers of Commercial Motor Vehicles in Intrastate Commerce 177
03/30/2011 Highway-Rail Grade Crossing; Safe Clearance 177
03/17/2011 Hazardous Materials: Safety Requirements for External Product Piping on Cargo Tanks Transporting Flammable Liquids 173
03/02/2011 Hazardous Materials: Enhanced Enforcement Authority Procedures 109
03/01/2011 Hazardous Materials: Adoption of ASME Code Section XII and the National Board Inspection Code 171 173 178 180
02/28/2011 Hazardous Materials: Limiting the Use of Electronic Devices by Highway 177
02/01/2011 Pipeline Safety: Mechanical Fitting Failure Reporting Requirements 191 192
02/01/2011 Hazardous Materials: Incorporation of Certain Cargo Tank Special Permits Into Regulations 171 173
01/28/2011 Highway-Rail Grade Crossing; Safe Clearance 177
01/27/2011 Hazardous Materials: Safety Requirements for External Product Piping on Cargo Tanks Transporting Flammable Liquids 173
01/25/2011 Operating Certain Railroad Tank Cars in Excess of 263,000 Pounds Gross Rail Load; Approval 179
01/25/2011 Hazardous Materials: Improving the Safety of Railroad Transportation of Hazardous Materials 174
01/19/2011 Hazardous Materials: Harmonization With the United Nations Recommendations, International Maritime Dangerous Goods Code, and the International Civil Aviation Organization Technical Instructions for the Safe Transport of Dangerous Goods by Air 171 172 173 175 176 178 180
01/05/2011 Hazardous Materials Transportation: Revisions of Special Permits Procedures 105 107 171
01/04/2011 Pipeline Safety: Safety of On-Shore Hazardous Liquid Pipelines 195
12/23/2010 Hazardous Materials: Adoption of ASME Code Section XII and the National Board Inspection Code 171 173 178 180
11/26/2010 Pipeline Safety: Technical Pipeline Safety Advisory Committee Meeting 195
11/26/2010 Pipeline Safety: Updates to Pipeline and Liquefied Natural Gas Reporting Requirements 191 192 193 195
11/16/2010 Pipeline Safety: Control Room Management/Human Factors 192 195
10/18/2010 Pipeline Safety: Safety of On-Shore Hazardous Liquid Pipelines 195
09/30/2010 Hazardous Material; Miscellaneous Packaging Amendments 171 173 178
09/29/2010 Hazardous Materials; Miscellaneous Amendments 107 171 172 173 174 177 178 180
09/27/2010 Hazardous Materials: Limiting the Use of Electronic Devices by Highway 177
09/17/2010 Pipeline Safety: Control Room Management/Human Factors 192 195
09/01/2010 Hazardous Materials: Minor Editorial Corrections and Clarifications 107 171 172 173 176 177 179 180
08/24/2010 Hazardous Materials: Harmonization With the United Nations Recommendations, International Maritime Dangerous Goods Code, and the International Civil Aviation Organization Technical Instructions for the Safe Transport of Dangerous Goods by Air 171 172 173 175 176 178 180
08/11/2010 Pipeline Safety: Periodic Updates of Regulatory References to Technical Standards and Miscellaneous Edits 192 193 195
08/03/2010 Pipeline Safety: Notice of Technical Pipeline Safety Advisory Committee Meetings 192
07/27/2010 Hazardous Materials Transportation: Revisions of Special Permits Procedures 105 107 171
07/27/2010 Hazardous Materials: Requirements for the Storage of Explosives During Transportation 171 177
07/21/2010 Hazardous Materials: Incorporation of Certain Cargo Tank Special Permits Into Regulations 171 173
06/28/2010 Pipeline Safety: Information Collection Gas Distribution Annual Report Form 192
06/22/2010 Pipeline Safety: Applying Safety Regulation to All Rural Onshore Hazardous Liquid Low-Stress Lines 195
05/14/2010 Hazardous Materials: Incorporation of Special Permits Into Regulations 105 107 171 173 174 176 177 179
05/14/2010 Hazardous Materials; Packages Intended for Transport by Aircraft 171 173
04/05/2010 Hazardous Materials Regulations: Combustible Liquids 172 173 176
03/30/2010 Hazardous Materials Transportation; Registration and Fee Assessment Program 107
03/09/2010 Hazardous Materials: Risk-Based Adjustment of Transportation Security Plan Requirements 172
03/01/2010 Hazardous Materials: Transportation of Lithium Batteries 172 173 175
02/03/2010 Pipeline Safety: Control Room Management/Human Factors, Correction 192 195