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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
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 Hazardous Materials: Incorporation of Certain Cargo Tank Special Permits Into Regulations 171 173
02/01/2011 Pipeline Safety: Mechanical Fitting Failure Reporting Requirements 191 192
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: 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
04/26/2010 Department Regulatory Agenda; Semiannual Summary 17 105 119 121 125 129 133 135 136 137 139 141 147 150 151 152 153 155 156 157 158 161 169 189 198 1 140 172 180 190 192 1200 1204 1205 1206 1208 1210 1215 1225 1235 1240 1250 1251 1252 1270 1275 1300 1201 1202 1203 1204 1205 1206 1207 1211 1213 1214 1215 1216 1217 1219 1222 1223 1224 1227 1228 1231 1232 1233 1234 1235 1236 1237 1239 1242 1245 1246 1247 1252 1253 1 14 17 178 179 180
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 Pipeline Safety: Integrity Management Program for Gas Distribution Pipelines; Correction 192
02/02/2010 Hazardous Materials Transportation; Registration and Fee Assessment Program 107
02/02/2010 Hazardous Material; Miscellaneous Packaging Amendments 171 172 173 174 178
01/11/2010 Hazardous Materials: Transportation of Lithium Batteries 172 173 175