Part 381 — Waivers, Exemptions, and Pilot Programs
49 CFR Part 381: How carriers, drivers, and states can seek relief from specific FMCSA regulations.
Selling a commercial truck? We buy nationwide, any condition, any DOT status.
Sell My TruckOverview
49 CFR Part 381 establishes the formal process through which motor carriers, drivers, and states can request waivers or exemptions from specific Federal Motor Carrier Safety Regulations, and through which FMCSA conducts pilot programs to test potential regulatory changes before making them permanent.
A waiver under Part 381 is a temporary grant of relief from a specific regulation for a defined period, typically conditioned on safety conditions or monitoring requirements. An exemption is similar but may be longer-term and can apply to entire categories of carriers or drivers. Both require applicants to demonstrate that the safety goal of the underlying regulation will be achieved through alternative means.
Pilot programs under Part 381 allow FMCSA to study the real-world effects of proposed regulatory changes before committing to them through formal rulemaking. Current and recent pilots have examined alternative sleeper berth split provisions under Part 395, split hours of service arrangements, and medical certification alternatives for commercial drivers. Data from these pilots directly informs future rulemaking.
Key Provisions
- Establishes the application process for waivers and exemptions from specific FMCSRs.
- Applicants must demonstrate equivalent or greater safety will be achieved without the waived rule.
- Exemptions can apply to individuals, companies, or classes of carriers or vehicles.
- Governs FMCSA pilot programs, which test proposed rule changes before formal rulemaking.
- Current pilot programs include alternatives to the standard sleeper berth split-rest provisions.
Why It Matters to Truck Owners
Waivers and exemptions under Part 381 are how the most practically significant regulatory flexibility in trucking gets created. Vision exemptions, medical condition exemptions, and hours-of-service pilot programs have all come through this part. If you or a driver you employ has a medical condition that would normally disqualify them from holding a CDL, the exemption pathway here may be relevant.
Frequently Asked Questions
How do I apply for an FMCSA waiver or exemption?
Applications must be submitted to FMCSA in writing and include a description of the specific regulation for which relief is sought, the safety rationale for why the exemption is appropriate, and how equivalent safety will be achieved. FMCSA publishes exemption applications and grants in the Federal Register for public comment.
What is the difference between an FMCSA waiver and an exemption?
A waiver under Part 381 is typically a temporary, individually tailored grant of regulatory relief, often issued for research or pilot purposes. An exemption tends to be broader — it can apply to a class of persons or vehicles and may be longer-term. Both require a safety showing and are published in the Federal Register.
Are there currently any active FMCSA pilot programs affecting hours of service?
FMCSA has conducted pilot programs examining alternative sleeper berth split provisions and other hours-of-service modifications. The status of active pilots changes — check the Federal Register and FMCSA’s website for current programs, as these can directly affect how operators in participating carriers manage compliance.
Read the official legal text: 49 CFR Part 381 — eCFR.gov (official)
Related Federal Trucking Laws
- Part 395 — Hours of Service of Drivers
- Part 391 — Driver Qualifications
- Part 382 — Drug and Alcohol Testing
- Part 385 — Safety Fitness Procedures
This page is provided for informational purposes only and is not legal advice. Always verify current requirements at fmcsa.dot.gov or with a qualified transportation attorney.
Ready to Sell Your Commercial Truck?
No inspections. No compliance hassle. We buy trucks in any condition, in all 50 states.
Sell My Truck