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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
09/10/2003 Hazardous Materials Regulations: Aluminum Cylinders Manufactured of Aluminum Alloy 6351-T6 Used in SCUBA, SCBA, and Oxygen Service-Revised Requalification and Use Criteria 171 173 180
09/08/2003 Hazardous Materials Regulations: Penalty Guidelines and Other Procedural Regulations 105 107 171
09/03/2003 Hazardous Materials: Requirements for Cargo Tanks 172 178 180
08/14/2003 Hazardous Materials; Miscellaneous Amendments 171 172 173 177 178 179 180
08/05/2003 Pipeline Safety: Producer-Operated Outer Continental Shelf Natural Gas and Hazardous Liquid Pipelines That Cross Directly Into State Waters 191 192 195
07/31/2003 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
07/15/2003 Pipeline Safety: Meeting of the Technical Pipeline Safety Standards Advisory Committee 192
06/16/2003 Pipeline Safety: Alternative Mitigation Measures for Required Repairs Delayed by a Need To Obtain Permits 192 195
06/11/2003 Hazardous Materials: Changes to the Hazard Communication Requirements, Including Revision of Design of Labels and Placards for Materials Poisonous by Inhalation (PIH) 171 172 173
06/02/2003 Hazardous Materials: Requirements for Maintenance, Requalification, Repair and Use of DOT Specification Cylinders; Correction of Compliance Dates 107 171 173 177 180
05/30/2003 Transportation of Hazardous Materials; Unloading of Intermodal (IM) and UN Portable Tanks on Transport Vehicles 171 173 177 178
05/28/2003 Hazardous Materials Security Plans; Information Collection Approval 171
05/08/2003 Hazardous Materials: Requirements for Maintenance, Requalification, Repair and Use of DOT Specification Cylinders; Response to Appeals and Extension of Compliance Dates 107 171 173 177 180
05/05/2003 Hazardous Materials: Enhancing Hazardous Materials Transportation Security 107 171 176 177
05/01/2003 Pipeline Safety: Liquefied Natural Gas Facilities: Clarifying and Updating Safety Standards 193
04/18/2003 Hazardous Materials: Requirements for Cargo Tanks 107 171 172 173 177 178 180
04/10/2003 Pipeline Safety: Pipeline Integrity Management in High Consequence Areas (Gas Transmission Pipelines) 192
04/07/2003 Regulatory Flexibility Act Section 610 and Plain Language Reviews 172 173 174 175 176 177 178
03/25/2003 Hazardous Materials: Security Requirements for Offerors and Transporters of Hazardous Materials 172
03/25/2003 Hazardous Materials: Availability of Information for Hazardous Materials Transported by Aircraft 171 175
03/19/2003 Pipeline Safety: Pipeline Integrity Management in High Consequence Areas (Gas Transmission Pipelines) 192
03/12/2003 Revisions; Definition of Administrator 107 190 191 192 193 195 198 199
03/03/2003 Pipeline Safety: Pipeline Integrity Management in High Consequence Areas (Gas Transmission Pipelines) 192
02/10/2003 Hazardous Materials: Safety Requirements for External Product Piping on Cargo Tanks Transporting Flammable Liquids 173
02/07/2003 Pipeline Safety: Pipeline Integrity Management in High Consequence Areas (Gas Transmission Pipelines) 192
01/28/2003 Pipeline Safety: Pipeline Integrity Management in High Consequence Areas (Gas Transmission Pipelines) 192
01/21/2003 Hazardous Materials; Miscellaneous Amendments 171 172 173 177 178
01/09/2003 Hazardous Materials: Temporary Reduction of Registration Fees 107
01/08/2003 Harmonization with the United Nations Recommendations, International Maritime Dangerous Goods Code, and International Civil Aviation Organization's Technical Instructions; Incorporation by Reference 171
01/02/2003 Pipeline Safety: Qualification of Pipeline Personnel 192 195
12/24/2002 Pipeline Drug Testing; Random Testing Rate 199
12/03/2002 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
11/13/2002 Pipeline Safety: Further Regulatory Review; Gas Pipeline Safety Standards 192
11/01/2002 Hazardous Materials: Revisions to Incident Reporting Requirements and the Hazardous Materials Incident Report Form 171
11/01/2002 Hazardous Materials: Retention of Shipping Papers 172 174 175 176 177
10/08/2002 Security Requirements for Motor Carriers Transporting Hazardous Materials 177
09/30/2002 Hazardous Materials: Requirements for Maintenance, Requalification, Repair and Use of DOT Specification Cylinders; Extension of Compliance Dates and Corrections 173 177
09/27/2002 Hazardous Materials Regulations: Minor Editorial Corrections and Clarifications 105 107 130 171 172 173 175 176 177 178 179 180
09/19/2002 Pipeline Safety: Hazardous Liquid Pipeline Operator Annual Report Form 195
09/16/2002 Hazardous Materials: Miscellaneous Revisions to Registration Requirements 107
09/06/2002 Pipeline Safety: Recommendations To Change Hazardous Liquid Pipeline Safety Standards 195
08/27/2002 Hazardous Materials: Revision to Standards for Infectious Substances; Correction 171 172 173 177 178
08/14/2002 Hazardous Materials: Revision to Standards for Infectious Substances 171 172 173 177 178
08/08/2002 Hazardous Materials: Requirements for Maintenance, Requalification, Repair and Use of DOT Specification Cylinders 107 171 172 173 177 178 179 180
08/06/2002 Pipeline Safety: High Consequence Areas For Gas Transmission Pipelines 192
07/26/2002 Pipeline Safety: Hazardous Liquid Pipeline Operator Annual Report Form 195
07/17/2002 Pipeline Safety: Pipeline Integrity Management in High Consequence Areas (Hazardous Liquid Operators With Less Than 500 Miles of Pipelines) 195
07/16/2002 Security Requirements for Motor Carriers Transporting Hazardous Materials 177
07/12/2002 Hazardous Materials: Retention of Shipping Papers 172 174 175 176 177
06/25/2002 Revised and Clarified Hazardous Materials Safety Rulemaking and Program Procedures 105 106 107 171