---
kind: "unit"
title: "23"
title_heading: "Highways"
key: "chI"
level: "chapter"
label: "Chapter I"
heading: "Federal Highway Administration, Department of Transportation"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/23/chI"
sections_count: 827
---

# Chapter I — Federal Highway Administration, Department of Transportation

Title 23 C.F.R. — Highways

## Contents

- [Subchapter A — General Management and Administration](/cfr/23/chI-subchA.md)
- [Subchapter B — Payment Procedures](/cfr/23/chI-subchB.md)
- [Subchapter C — Civil Rights](/cfr/23/chI-subchC.md)
- [Subchapter D — National Highway Institute](/cfr/23/chI-subchD.md)
- [Subchapter E — Planning and Research](/cfr/23/chI-subchE.md)
- [Subchapter F — Transportation Infrastructure Management](/cfr/23/chI-subchF.md)
- [Subchapter G — Engineering and Traffic Operations](/cfr/23/chI-subchG.md)
- [Subchapter H — Right-Of-Way and Environment](/cfr/23/chI-subchH.md)
- [Subchapter I — Public Transportation](/cfr/23/chI-subchI.md)
- [Subchapter J — Highway Safety](/cfr/23/chI-subchJ.md)
- [Subchapter K — Intelligent Transportation Systems](/cfr/23/chI-subchK.md)
- [Subchapter L — Federal Lands Highways](/cfr/23/chI-subchL.md)