---
kind: "unit"
title: "49"
title_heading: "Transportation"
key: "stVI/ptB/ch315"
level: "chapter"
label: "Chapter 315"
heading: "Motor Carrier Safety"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/49/stVI-ptB-ch315"
sections_count: 4
---

# Chapter 315 — Motor Carrier Safety

Title 49 — Transportation › Subtitle VI — Motor Vehicle and Driver Programs › Part B — Commercial

## Sections

- [§31501. Definitions](/usc/49/31501.md)
- [§31502. Requirements for qualifications, hours of service, safety, and equipment standards](/usc/49/31502.md)
- [§31503. Research, investigation, and testing](/usc/49/31503.md)
- [§31504. Identification of motor vehicles](/usc/49/31504.md)