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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

General

Legacy ID
16
Show Effective Date
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Significant Regulatory Guidance
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Safe Transportation of Energy Products Overview

Nearly a million shipments of hazardous materials move throughout the U.S. each day. While most of these shipments reach their final destinations without incident, accidents can and do occur. Enhancing the safe transport of crude oil by rail is one of the Department’s top priorities. DOT...

PHMSA and Pipelines FAQs

PHMSA and Pipelines FAQs What PHMSA does for pipeline safety and who else may have authority over pipelines.

General Pipeline FAQs

Basic information about the use of pipelines and their contents.

What are the major sources of energy in the United States?What kinds of products are transported through energy pipelines?What is 'crude oil'?How is oil used?How is natural gas used?What can you tell me about our nation's...

Gathering Pipelines FAQs

Education and prevention are key components of pipeline safety, so in addition to learning more about gathering pipelines, the public should also remember to call 811, a nationwide toll-free number, before beginning a digging project to learn the location of pipelines that may be underground.

Hazardous Materials Special Permits FAQs

When did the term "exemptions" change to "special permits"?Will DOT immediately reissue all exemptions as special permits?May I start using the "SP" marking on packages or shipping papers even though my authorization is still an exemption?What documentation do I need...

Fireworks FAQs

What documents should be included with the application? May I submit the application by email? May I submit the application in one file? What is the required format? Do I need to include the denial letter with an application that is being resubmitted? What are the common reasons why an...

Cylinder Approvals: Overfilling Prevention Device (OPD) FAQs

I was told that after April 1, 2002 my propane cylinder must be equipped with an overfilling prevention device (OPD) before it can be refilled. What is an OPD?Are OPDs required under DOT regulations?What are the OPD requirements under NFPA 58?As a refiller and/or requalifier of DOT specification...

Approvals FAQs

I have a Competent Authority Approval (CA) with a seven-digit number and I understand that the U.S. Department of Transportation's Office of Approvals has changed the numbering system to a 10-digit number. Will my company have to apply for a new number? May I use packagings, labels and/or stamps...