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DOT Guidance Portal

Welcome to the DOT Guidance Portal. This web portal is a searchable, indexed database, that contains all guidance documents issued by DOT and its nine operating administrations that are in effect today. The guidance documents contained herein lack the force and effect of law, unless expressly authorized by statute or incorporated into a contract. DOT may not cite, use, or rely on any guidance that is not available through this guidance portal, except to establish historical facts.

Guidance documents issued by the Office of the Secretary of Transportation (OST) are available below and guidance documents for each of the operating administrations are found on their individual website Guidance Portals.

You may submit a request electronically for issuance, reconsideration, modification, or rescission of guidance documents by emailing regulationC50.law@dot.gov.
Subject Topic Issued Date
Employees Covered Under DOT Testing Regulation 49 CFR Part 40 Drug and Alcohol Testing
DOT’s 10 Steps to Collection Site Security and Integrity (English) Drug and Alcohol Testing
What Employees Need to Know About DOT Drug & Alcohol Testing (English) Drug and Alcohol Testing
Section 1301 - Satisfaction of Requirements for Certain Historic Sites Transportation Policy
ANC GUIDANCE Disadvantaged Business Enterprise
Public Charter Assurances Aviation Policy
Cruise Line Guidelines Aviation Policy
Foreign Air Carrier Information Packet Aviation Policy
How to Become a Certificated Air Carrier Aviation Policy
Official Questions and Answers (Q&A's) Disadvantaged Business Enterprise Program Regulation (49 CFR 26) Disadvantaged Business Enterprise