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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.
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Subject Topic Issued Date
Memo to Certification Staff - Native American Owned DBEs and Applicant Firms Disadvantaged Business Enterprise
Departmental Guidance on Valuation of a Statistical Life in Economic Analysis Transportation Policy
Official FAQs on DBE Program Regulations (49 CFR 23) Disadvantaged Business Enterprise
Notice Regarding Current Administration and Enforcement of The Essential Air Service Program Aviation Consumer Protection
Notice - Reporting of Causes of Flight Delays and Cancellations Given The Unprecedented Impact Of The COVID-19 Public Health Emergency On Air Travel Aviation Consumer Protection
Enforcement Notice Regarding Refunds by Carriers Given the Unprecedented Impact of the COVID-19 Public Health Emergency on Air Travel Aviation Consumer Protection
COVID-19 Guidance Disadvantaged Business Enterprise
DOT Guidance on Compliance with DOT Drug and Alcohol Testing Regulations Drug and Alcohol Testing
DOT "CBD" Notice Drug and Alcohol Testing
Inflation Adjustments to Liability Limits Governed by the Montreal Convention Effective December 28, 2019 Aviation Consumer Protection