When Do CMV Regulations Apply?
A vehicle is generally considered a Commercial Motor Vehicle (CMV) when it:
- Is used in commerce (including transfers between dealership locations), and
- Has a Gross Vehicle Weight Rating (GVWR) of 10,001 pounds or more
If both conditions are met, federal CMV requirements apply, even for internal dealership transfers.
What Is Required for Compliance?
When CMV regulations apply, both driver and vehicle requirements must be met.
Driver Requirements
- Valid driver’s license (CDL required only at 26,001+ lbs.)
- DOT medical certificate (medical card)
- Compliance with Hours of Service (HOS) (often satisfied via timecards)
- Driver Qualification File maintained by the employer
Vehicle Requirements
- Display of a USDOT number
- Annual DOT inspection documentation
- Properly functioning safety equipment (brakes, lights, tires, mirrors)
- Emergency warning triangles
- Fire extinguisher
Do You Need a USDOT Number?
If your dealership is operating CMVs in interstate commerce, a USDOT number is generally required. Dealers have two options:
- Company-wide USDOT number: centralized recordkeeping
- Separate USDOT numbers per location: each store manages its own compliance
The best approach depends on how your operations are structured.
Note: Not all locations require a USDOT number. If a dealership does not transport vehicles over 10,000 pounds (and does not otherwise meet CMV thresholds), it may not be necessary.
Recordkeeping Considerations
Obtaining a USDOT number triggers federal recordkeeping requirements.
- Records must be maintained at a designated location
- Driver time records (Hours of Service) must be accessible
- Centralized recordkeeping may not be practical for multi-state operations
USDOT Number Display Requirements
Vehicles operating as CMVs must display:
- Company name (exactly as registered)
- USDOT number
Display options include:
- Magnetic signage
- Temporary paper signage (e.g., 8.5″ x 11″ sheet inside the rear window)
All markings must be legible from at least 50 feet.
Do Drivers Need to Stop at Weigh Stations?
Yes. Vehicles meeting CMV criteria (10,001+ lbs. in commerce) are required to stop at open and operating inspection stations, including in New Hampshire.
Best Practice: Create a Vehicle Transfer Kit
To streamline compliance, consider preparing a standardized transfer kit for drivers, including:
- Emergency triangles
- Fire extinguisher
- Laminated USDOT signage
- Tape or mounting materials
This helps ensure required equipment and markings are always available during transfers.
New Entrant Status & Safety Audits
After obtaining a USDOT number, your business will be classified as a “New Entrant” for 18 months. During this period:
- A Safety Audit will be conducted within the first 12 months
- Audits are performed on behalf of FMCSA (often by NH State Police Troop G)
Proper preparation is key to successfully completing this process.
Training Is Strongly Recommended
CMV compliance extends beyond basic requirements. NHADA encourages dealerships to attend:
- New Entrant and Compliance Training (NH State Police – Troop G)
- NHADA training sessions as available
These programs provide guidance on recordkeeping, driver files and audit readiness.
Key Takeaways
- Dealer transfers can trigger CMV regulations
- Vehicles over 10,001 lbs. in commerce must comply
- A USDOT number may be required for interstate movement
- Compliance includes drivers, vehicles and recordkeeping
- CMV drivers must stop at weigh stations
- Preparation helps avoid citations and audit issues
Need Help?
CMV requirements can be complex, especially for multi-location dealerships. NHADA is available to help members evaluate their operations and stay compliant. Reach out to our team with questions or for guidance.
