General: What are the phone numbers for the Departments I may need to contact?
- The regulatory and credentialing section of the Michigan State Police, Commercial Vehicle Enforcement Division (MSP/CVED): 517-284-3250
- Secretary of State, International Registration Plan (IRP):
- Michigan Trucking Association: 517-321-1951
- Federal Heavy Highway Vehicle Use Tax: 800-829-4933
- Michigan Center for Truck Safety: 800-682-4682 or 517-321-1951