---
kind: "unit"
title: "49"
title_heading: "Transportation"
key: "subtA"
level: "subtitle"
label: "Subtitle A"
heading: "Office of the Secretary of Transportation"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/49/subtA"
sections_count: 1320
---

# Subtitle A — Office of the Secretary of Transportation

Title 49 C.F.R. — Transportation

## Contents

- [Part 1 — Organization and Delegation of Powers and Duties](/cfr/49/subtA-part1.md)
- [Part 3 — Official Seal](/cfr/49/subtA-part3.md)
- [Part 5 — Administrative Rulemaking, Guidance, and Enforcement Procedures](/cfr/49/subtA-part5.md)
- [Part 6 — Implementation of Equal Access to Justice Act in Agency Proceedings](/cfr/49/subtA-part6.md)
- [Part 7 — Public Availability of Information](/cfr/49/subtA-part7.md)
- [Part 8 — Classified Information: Classification/declassification/access](/cfr/49/subtA-part8.md)
- [Part 9 — Testimony of Employees of the Department and Production of Records in Legal Proceedings](/cfr/49/subtA-part9.md)
- [Part 10 — Maintenance of and Access to Records Pertaining to Individuals](/cfr/49/subtA-part10.md)
- [Part 11 — Protection of Human Subjects](/cfr/49/subtA-part11.md)
- [Part 15 — Protection of Sensitive Security Information](/cfr/49/subtA-part15.md)
- [Part 17 — Intergovernmental Review of Department of Transportation Programs and Activities](/cfr/49/subtA-part17.md)
- [Part 18-19 — Parts 18-19 [reserved]](/cfr/49/subtA-part18-19.md)
- [Part 20 — New Restrictions on Lobbying](/cfr/49/subtA-part20.md)
- [Part 21 — Nondiscrimination in Federally-Assisted Programs of the Department of Transportation—effectuation of Title Vi of the Civil Rights Act of 1964](/cfr/49/subtA-part21.md)
- [Part 22 — Short-Term Lending Program (stlp)](/cfr/49/subtA-part22.md)
- [Part 23 — Participation of Disadvantaged Business Enterprise in Airport Concessions](/cfr/49/subtA-part23.md)
- [Part 24 — Uniform Relocation Assistance and Real Property Acquisition for Federal and Federally Assisted Programs](/cfr/49/subtA-part24.md)
- [Part 25 — Nondiscrimination on the Basis of Sex in Education Programs or Activities Receiving Federal Financial Assistance](/cfr/49/subtA-part25.md)
- [Part 26 — Participation by Disadvantaged Business Enterprises in Department of Transportation Financial Assistance Programs](/cfr/49/subtA-part26.md)
- [Part 27 — Nondiscrimination on the Basis of Disability in Programs or Activities Receiving Federal Financial Assistance](/cfr/49/subtA-part27.md)
- [Part 28 — Enforcement of Nondiscrimination on the Basis of Handicap in Programs or Activities Conducted by the Department of Transportation](/cfr/49/subtA-part28.md)
- [Part 29 — Tribal Transportation Self-Governance Program](/cfr/49/subtA-part29.md)
- [Part 30 — Denial of Public Works Contracts to Suppliers of Goods and Services of Countries That Deny Procurement Market Access to U.s. Contractors](/cfr/49/subtA-part30.md)
- [Part 31 — Program Fraud Civil Remedies](/cfr/49/subtA-part31.md)
- [Part 32 — Governmentwide Requirements for Drug-Free Workplace (financial Assistance)](/cfr/49/subtA-part32.md)
- [Part 33 — Transportation Priorities and Allocation System](/cfr/49/subtA-part33.md)
- [Part 37 — Transportation Services for Individuals with Disabilities (ada)](/cfr/49/subtA-part37.md)
- [Part 38 — Americans with Disabilities Act (ada) Accessibility Specifications for Transportation Vehicles](/cfr/49/subtA-part38.md)
- [Part 39 — Transportation for Individuals with Disabilities: Passenger Vessels](/cfr/49/subtA-part39.md)
- [Part 40 — Procedures for Transportation Workplace Drug and Alcohol Testing Programs](/cfr/49/subtA-part40.md)
- [Part 41 — Seismic Safety](/cfr/49/subtA-part41.md)
- [Part 71 — Standard Time Zone Boundaries](/cfr/49/subtA-part71.md)
- [Part 79 — Medals of Honor](/cfr/49/subtA-part79.md)
- [Part 80 — Credit Assistance for Surface Transportation Projects](/cfr/49/subtA-part80.md)
- [Part 89 — Implementation of the Federal Claims Collection Act](/cfr/49/subtA-part89.md)
- [Part 91 — International Air Transportation Fair Competitive Practices](/cfr/49/subtA-part91.md)
- [Part 92 — Recovering Debts to the United States by Salary Offset](/cfr/49/subtA-part92.md)
- [Part 93 — Part 93 [reserved]](/cfr/49/subtA-part93.md)
- [Part 95 — Part 95 [reserved]](/cfr/49/subtA-part95.md)
- [Part 98 — Enforcement of Restrictions on Post-Employment Activities](/cfr/49/subtA-part98.md)
- [Part 99 — Employee Responsibilities and Conduct](/cfr/49/subtA-part99.md)