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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
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: Updates to Pipeline and Liquefied Natural Gas Reporting Requirements 191 192 193 195
11/26/2010 Pipeline Safety: Technical Pipeline Safety Advisory Committee Meeting 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; Packages Intended for Transport by Aircraft 171 173
05/14/2010 Hazardous Materials: Incorporation of Special Permits Into Regulations 105 107 171 173 174 176 177 179
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
02/02/2010 Hazardous Material; Miscellaneous Packaging Amendments 171 172 173 174 178
02/02/2010 Hazardous Materials Transportation; Registration and Fee Assessment Program 107
02/02/2010 Pipeline Safety: Integrity Management Program for Gas Distribution Pipelines; Correction 192
01/11/2010 Hazardous Materials: Transportation of Lithium Batteries 172 173 175
01/04/2010 Hazardous Materials: Revision to Requirements for the Transportation of Batteries and Battery-Powered Devices; and Harmonization With the United Nations Recommendations, International Maritime Dangerous Goods Code, and International Civil Aviation Organization's Technical Instructions; Correction 171 172 173 175 178
12/31/2009 Pipeline Safety: Integrity Management Program for Gas Distribution Pipelines 192
12/29/2009 Hazardous Materials: Adjustment of Maximum and Minimum Civil Penalties 107 171
12/22/2009 Hazardous Materials: Incorporation of Special Permits Into Regulations 105 107 171 173 174 176 177 179
12/11/2009 Hazardous Materials: Chemical Oxygen Generators 172
12/04/2009 Pipeline Safety: Integrity Management Program for Gas Distribution Pipelines 192
12/03/2009 Pipeline Safety: Control Room Management/Human Factors 192 195
11/30/2009 Pipeline Safety: Editorial Amendments to the Pipeline Safety Regulations. 190 192 195 198
10/29/2009 Pipeline Safety: Pipeline Damage Prevention Programs 190 192 195 198
10/22/2009 Hazardous Materials: Revision of Requirements for Emergency Response Telephone Numbers 172 174
10/21/2009 Hazardous Materials: Harmonization With the United Nations Recommendations on the Transport of Dangerous Goods Model Regulations, International Maritime Dangerous Goods Code, International Civil Aviation Organization Technical Instructions for the Safe Transport of Dangerous Goods by Air, and Transport Canada's Transport of Dangerous Goods Regulations 171 172 173 174 175 176 177 178 179 180
10/19/2009 Hazardous Materials: Revision of Requirements for Emergency Response Telephone Numbers 172 174