---
kind: "unit"
title: "49"
title_heading: "Transportation"
key: "stVI/ptB/ch313"
level: "chapter"
label: "Chapter 313"
heading: "Commercial Motor Vehicle Operators"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/49/stVI-ptB-ch313"
sections_count: 18
---

# Chapter 313 — Commercial Motor Vehicle Operators

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

## Sections

- [§31301. Definitions](/usc/49/31301.md)
- [§31302. Commercial driver’s license requirement](/usc/49/31302.md)
- [§31303. Notification requirements](/usc/49/31303.md)
- [§31304. Employer responsibilities](/usc/49/31304.md)
- [§31305. General driver fitness, testing, and training](/usc/49/31305.md)
- [§31306. Alcohol and controlled substances testing](/usc/49/31306.md)
- [§31306a. National clearinghouse for controlled substance and alcohol test results of commercial motor vehicle operators](/usc/49/31306a.md)
- [§31307. Minimum training requirements for operators of longer combination vehicles](/usc/49/31307.md)
- [§31308. Commercial driver’s license](/usc/49/31308.md)
- [§31309. Commercial driver’s license information system](/usc/49/31309.md)
- [§31310. Disqualifications](/usc/49/31310.md)
- [§31311. Requirements for State participation](/usc/49/31311.md)
- [§31312. Decertification authority](/usc/49/31312.md)
- [§31313. Commercial driver’s license program implementation financial assistance program](/usc/49/31313.md)
- [§31314. Withholding amounts for State noncompliance](/usc/49/31314.md)
- [§31315. Waivers, exemptions, and pilot programs](/usc/49/31315.md)
- [§31316. Limitation on statutory construction](/usc/49/31316.md)
- [§31317. Procedure for prescribing regulations](/usc/49/31317.md)