---
kind: "unit"
title: "49"
title_heading: "Transportation"
key: "stIV/ptB/ch145"
level: "chapter"
label: "Chapter 145"
heading: "Federal-State Relations"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/49/stIV-ptB-ch145"
sections_count: 7
---

# Chapter 145 — Federal-State Relations

Title 49 — Transportation › Subtitle IV — Interstate Transportation › Part B — Motor Carriers, Water Carriers, Brokers, and Freight Forwarders

## Sections

- [§14501. Federal authority over intrastate transportation](/usc/49/14501.md)
- [§14502. Tax discrimination against motor carrier transportation property](/usc/49/14502.md)
- [§14503. Withholding State and local income tax by certain carriers](/usc/49/14503.md)
- [§14504. Repealed.](/usc/49/14504.md)
- [§14504a. Unified Carrier Registration System plan and agreement](/usc/49/14504a.md)
- [§14505. State tax](/usc/49/14505.md)
- [§14506. Identification of vehicles](/usc/49/14506.md)