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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
09/23/2005 Hazardous Materials Regulations: Minor Editorial Corrections and Clarifications 105 106 107 110 171 172 173 176 177 178 179 180
07/28/2005 Applicability of the Hazardous Materials Regulations to a “Person Who Offers” a Hazardous Material for Transportation in Commerce 171
07/18/2005 Pipeline Safety: Update of Regulatory References to Technical Standards 192 193 195
06/23/2005 Hazardous Materials: Requirements for Cylinders; Extension of Comment Period 107 171 172 173 178 180
06/22/2005 Pipeline Safety: Use of Polyamide-11 Plastic Pipe in Gas Pipelines 192
06/16/2005 Pipeline Safety: Pipeline Operator Public Awareness Program 192
06/16/2005 Pipeline Safety: Response Plans for Onshore Transportation-Related Oil Pipelines 194
06/15/2005 Hazardous Materials; Transportation of Lithium Batteries 171 172 173 175
06/15/2005 Pipeline Safety: Operator Qualifications; Statutory Changes 192 195
06/14/2005 Harmonization With the United Nations Recommendations, International Maritime Dangerous Goods Code, and International Civil Aviation Organization's Technical Instructions; Correction; Final Rule 172 173 175 176 178 180
06/13/2005 Hazardous Materials; Miscellaneous Amendments 171 172 173 178 179 180
06/08/2005 Hazardous Materials: Incorporation of Exemptions Into Regulations; Notice of Information Collection Approval 171
05/19/2005 Hazardous Materials: Infectious Substances; Harmonization With the United Nations Recommendations 171 172 173 175
05/19/2005 Pipeline Safety: Pipeline Operator Public Awareness Program 192 195
04/15/2005 Applicability of the Hazardous Materials Regulations to Loading, Unloading, and Storage 171 174
04/06/2005 Hazardous Materials: Hazardous Waste Manifest Requirements; Withdrawal of Notice of Proposed Rulemaking 172
03/09/2005 Hazardous Materials: Requirements for UN Cylinders 107 171 172 173 178 180
03/08/2005 Agency Reorganization: Nomenclature Change and Technical Amendments 190 191 192 193 194 195 198 199
03/03/2005 Pipeline Safety: Operator Qualifications; Statutory Changes 192 195
02/24/2005 Hazardous Materials: Availability of Information for Hazardous Materials Transported by Aircraft 171
02/23/2005 Pipeline Safety: Response Plans for Onshore Transportation-Related Oil Pipelines 194
02/15/2005 Regulatory Flexibility Act Section 610 and Plain Language Reviews 173
02/10/2005 Hazardous Materials: Safety Requirements for External Product Piping on Cargo Tanks Transporting Flammable Liquids 173
01/24/2005 Hazardous Materials; Incorporation of Exemptions Into Regulations 171 173 174 176 177
01/21/2005 Hazardous Materials: Revision of Requirements for Carriage by Aircraft 171 172 173 175
01/21/2005 Pipeline Safety: Periodic Updates to Pipeline Safety Regulations 192
01/13/2005 Hazardous Materials; Prohibition on the Transportation of Primary Lithium Batteries and Cells Aboard Passenger Aircraft; Notice of Public Meeting 171 172 173 175
01/03/2005 Pipeline Safety: Random Drug Testing Rate 199
12/30/2004 Hazardous Materials: Safety Requirements for External Product Piping on Cargo Tanks Transporting Flammable Liquids 173
12/21/2004 Safeguarding Food From Contamination During Transportation 121
12/20/2004 Harmonization With the United Nations Recommendations, International Maritime Dangerous Goods Code, and International Civil Aviation Organization's Technical Instructions 171 172 173 175 176 178 180
12/15/2004 Hazardous Materials; Prohibition on the Transportation of Primary Lithium Batteries and Cells Aboard Passenger Aircraft 171 172 173 175
12/08/2004 Applicability of the Hazardous Materials Regulations to Loading, Unloading, and Storage 171 173 174 175 176 177 178
11/10/2004 Hazardous Materials: Revision of Requirements for Carriage by Aircraft 171 172 173 175
11/04/2004 Hazardous Materials: Miscellaneous Changes to the Hazard Communication Requirements 171 172 173
10/21/2004 Pipeline Safety: Standards for Direct Assessment of Gas and Hazardous Liquid Pipelines 192 195
10/01/2004 Hazardous Materials Regulations; Compatibility With the Regulations of the International Atomic Energy Agency; Correction; Final Rule 171 173
09/24/2004 Applicability of the Hazardous Materials Regulations to “Persons Who Offer” Hazardous Materials for Transportation in Commerce 171
09/13/2004 Hazardous Materials Regulations; Compatibility With the Regulations of the International Atomic Energy Agency; Correction; Final Rule 171 172 173
09/09/2004 Pipeline Safety: Periodic Updates to Pipeline Safety Regulations (2001); Corrections 192 195
09/08/2004 Pipeline Safety: Pressure Limiting and Regulating Stations 192
09/07/2004 Hazardous Materials Regulations: Minor Editorial Corrections and Clarifications 106 107 171 172 173 178 179 180
09/01/2004 Hazardous Materials: Availability of Information for Hazardous Materials Transported by Aircraft 171
08/16/2004 Hazardous Materials; Requirements for Lighters and Lighter Refills 171 172 173
08/12/2004 Hazardous Materials; Miscellaneous Amendments 171 172 173 178 179 180
08/10/2004 Pipeline Safety: Periodic Underwater Inspections 192 195
08/04/2004 Hazardous Materials: Transportation of Compressed Oxygen, Other Oxidizing Gases and Chemical Oxygen Generators on Aircraft 171 172 173 175 178
07/13/2004 Hazardous Materials Regulations: Minor Editorial Corrections 172
07/12/2004 Pipeline Safety: Liquefied Natural Gas Facilities; Clarifying and Updating Safety Standards 193
06/28/2004 Pipeline Safety: Passage of Internal Inspection Devices 192