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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
07/13/1998 Metric Equivalents 191 192 193 194 195
07/10/1998 Transportation of Hazardous Materials; Miscellaneous Amendments 171 172 173 175 177 178 180
07/08/1998 Drug and Alcohol Testing; Substance Abuse Professional Evaluation for Drug Use; Correction 199
07/06/1998 Pipeline Safety: Incorporation by Reference of Industry Standard on Leak Detection 195
06/04/1998 Hazardous Materials: Safety Standards for Preventing and Mitigating Unintentional Releases During the Unloading of Cargo Tank Motor Vehicles in Liquefied Compressed Gas Service 171 177 178 180
06/04/1998 Hazardous Materials: Formal Interpretation of Regulations 107 171 172 173 174 175 176 177
06/01/1998 Hazardous Materials Ticketing Program 107
05/21/1998 Pipeline Safety: Adoption of Industry Standards for Breakout Tanks 195
04/23/1998 Excess Flow ValveCustomer Notification 192
04/01/1998 Improvements to Hazardous Materials Identification Systems; Editorial Revisions and Responses to Petitions for Reconsideration and Appeal 172
03/31/1998 Pressure Testing Older Hazardous Liquid and Carbon Dioxide Pipelines 195
03/24/1998 Control of Drug Use and Alcohol Misuse in Natural Gas, Liquefied Natural Gas, and Hazardous Liquid Pipeline Operations 199
03/17/1998 Drug and Alcohol Testing; Substance Abuse Professional Evaluation for Drug Use 199
03/16/1998 Pipeline Safety: Regulations Implementing Memorandum of Understanding With the Department of the Interior 191 192 195
03/03/1998 Pipeline Safety: Change in Response Plan Review Cycle 194
02/27/1998 Low-Stress Hazardous Liquid Pipelines Serving Plants and Terminals 195
02/18/1998 Hazardous Materials in Intrastate Commerce; Technical Amendments 173
02/17/1998 Pipeline Safety: Periodic Updates to Pipeline Safety Regulations (1997) 190 191 192 193 195 199
02/10/1998 Pressure Testing Older Hazardous Liquid and Carbon Dioxide Pipelines 195
02/05/1998 Risk-Based Alternative To Pressure Testing Older Hazardous Liquid and Carbon Dioxide Pipelines Rule 195
02/05/1998 Pipeline Safety: Incorporation of Standard NFPA 59A in the Liquefied Natural Gas Regulations 193
02/03/1998 Excess Flow ValveCustomer Notification 192
02/02/1998 Pipeline Safety: Plastic Pipeline Safety Standards 192 195
01/26/1998 Pressure Testing Older Hazardous Liquid and Carbon Dioxide Pipelines 195
12/29/1997 Qualification of Pipeline Personnel 192 195
12/29/1997 Metric Equivalents 191 192 193 194 195
12/24/1997 Control of Drug Use and Alcohol Misuse in Natural Gas, Liquefied Natural Gas, and Hazardous Liquid Pipeline Operations 199
12/24/1997 Pipeline Safety: Change in Response Plan Review Cycle 194
12/22/1997 Hazardous Materials: Withdrawal of Radiation Protection Program Requirement 172 174 175 176 177
12/22/1997 Hazardous Materials: Radiation Protection Program Requirement 172
12/22/1997 Hazardous Materials: Radiation Protection Program Requirement 172 172 174 175 176 177
12/15/1997 Pipeline Safety: Incorporation by Reference of Industry Standard on Leak Detection 195
12/10/1997 Hazardous Materials: Cargo Tank Motor Vehicles in Liquefied Compressed Gas Service; Response To Petitions for Reconsideration; Editorial Revisions; and Rules Clarification 171
11/28/1997 Hazardous Materials: Prohibition of Oxidizers Aboard Aircraft; Notice of Public Meeting and Reopening of Comment Period 171 172 175
11/24/1997 Qualification of Pipeline Personnel 192 195
11/19/1997 Mandatory Participation in Qualified One-Call Systems by Pipeline Operators 192 195
11/19/1997 Pipeline Safety: Regulations Implementing Memorandum of Understanding With the Department of the Interior 191 192 195
11/03/1997 Control of Drug Use and Alcohol Misuse in Natural Gas, Liquefied Natural Gas, and Hazardous Liquid Pipeline Operations Alcohol Misuse Prevention Program 199
10/29/1997 Pipeline Safety: Incorporation by Reference of Industry Standard on Leak Detection 195
10/27/1997 Fees for Providing Production Certification-Related Services Outside the United States 187 187
10/21/1997 Pressure Testing Older Hazardous Liquid and Carbon Dioxide Pipelines 195
10/08/1997 Low-Stress Hazardous Liquid Pipelines Serving Plants and Terminals 195
10/02/1997 Remotely Controlled Valves on Natural Gas Pipeline Facilities 192
10/01/1997 Hazardous Materials Regulations; Editorial Corrections and Clarifications 107 171 172 173 175 176 177 178 179 180
09/24/1997 Transportation of Hazardous Materials; Miscellaneous Amendments 171 171 172 173 175 177 178 180
09/22/1997 Hazardous Materials in Intrastate Commerce; Delay of Compliance Date, Technical Amendments, Corrections and Response to Petitions for Reconsideration 171 173
09/19/1997 Hazardous Materials: Cargo Tank Motor Vehicles in Liquefied Compressed Gas Service; Advisory Guidance for Leak Testing Discharge Systems 171
09/18/1997 Liquefied Natural Gas RegulationsMiscellaneous Amendments 193
09/16/1997 Liquefied Natural Gas RegulationsMiscellaneous Amendments 193
09/02/1997 Hazardous Materials: Withdrawal of Radiation Protection Program Requirement 172 174 175 176 177