Part 388 — Cooperative Agreements with State Enforcement
49 CFR Part 388: The federal-state partnership that funds and authorizes roadside commercial vehicle inspections.
Selling a commercial truck? We buy nationwide, any condition, any DOT status.
Sell My TruckOverview
49 CFR Part 388 establishes the framework for cooperative agreements between FMCSA and state agencies under which those agencies conduct commercial vehicle enforcement — including roadside inspections, weigh station operations, and compliance checks — on FMCSA’s behalf. These agreements are what authorize state police and DOT officers to enforce federal trucking rules.
Through cooperative agreements under Part 388, FMCSA provides funding and technical standards to states, which in turn deploy enforcement officers, conduct roadside inspections using FMCSA’s inspection procedures, and report results into FMCSA’s national database. The data collected through these state enforcement activities feeds directly into CSA scores and can trigger FMCSA compliance reviews.
The Commercial Vehicle Safety Alliance (CVSA) — the organization that develops and maintains standardized inspection procedures used across North America — operates within the framework established by Part 388 agreements. CVSA’s inspection levels and out-of-service criteria are what enforcement officers apply at roadside under these agreements.
Key Provisions
- Establishes cooperative agreements between FMCSA and state agencies for roadside enforcement.
- State officers enforce federal FMCSRs under these agreements, authorized as FMCSA’s agents.
- Inspection results reported to FMCSA flow into CSA safety scores and compliance review triggers.
- FMCSA provides funding to states for commercial vehicle enforcement through MCSAP grants.
- CVSA inspection standards are applied by officers operating under Part 388 agreements.
Why It Matters to Truck Owners
Part 388 is the legal foundation for why a state trooper or DOT officer can write you up for a federal FMCSA violation during a roadside stop. Every inspection you receive — every out-of-service order, every violation entered into your CSA record — flows through the cooperative agreement framework this part establishes. Understanding that state enforcement is federal enforcement in practice helps carriers take roadside inspections as seriously as formal FMCSA audits.
Frequently Asked Questions
Can state police enforce federal trucking regulations?
Yes — under cooperative agreements established by Part 388, state law enforcement and DOT officers are authorized to enforce Federal Motor Carrier Safety Regulations at roadside. They receive FMCSA training and certification and must follow FMCSA and CVSA inspection procedures.
How do roadside inspection results affect a carrier’s FMCSA record?
Inspection results from state officers operating under Part 388 agreements are reported to FMCSA and entered into the national enforcement database. This data feeds directly into CSA safety scores across all seven BASIC categories, affects safety fitness determinations, and is visible to the public on FMCSA’s SAFER system.
What is CVSA and how does it relate to Part 388?
The Commercial Vehicle Safety Alliance (CVSA) is the organization that develops and maintains standardized inspection procedures used by enforcement officers in all 50 states plus Canada and Mexico. CVSA inspection levels and out-of-service criteria are applied by officers operating under Part 388 cooperative agreements, creating uniformity across state borders.
Read the official legal text: 49 CFR Part 388 — eCFR.gov (official)
Related Federal Trucking Laws
- Part 385 — Safety Fitness Procedures
- Part 392 — Driving of Commercial Motor Vehicles
- Part 396 — Inspection, Repair, and Maintenance
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