Regulatory Interpretations

Because FTA awards such a substantial amount of Federal assistance to support public transportation through its grants and cooperative agreements, Federal laws and regulations require FTA to ensure that its recipients use that Federal assistance prudently and in compliance with all applicable Federal requirements. The following are documents that are considered informal letters of interpretations or clarification of Regulations. This information can be found in a number of different locations throughout the site. This list may not be complete.

Topic Location
49 CFR Part 37 Construction and Interpretation of Provisions (PDF)
Bus Testing Interpretations of Definitions
Buy America Waivers and Letters of Interpretation
Frequently Asked Questions (FAQs)
Drug & Alcohol Current Interpretations
Various Administrator's Policy Letters (Dear Colleague Letters)
Region 10 Bulletins
Third-Party Procurement FAQs