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Regulations

This page shows Department of Transportation content pertaining to a specific tag. If you cannot find what you’re looking for on this page, please use the search box in the top right of our website.

Regulatory Responsibilities and Contacts

The following is a list of DOT's Operating Administrations, the Office of the Secretary (OST), and their regulatory responsibilities.  Click on the Operating Administration/OST names to be directed to their regulatory Web sites.  This information should help you identify the DOT agency...