(a) The Department requires all motor carriers, as defined in W.S. 31-18-101, and carriers in interstate commerce, as defined in 49 C.F.R. 390.5, to comply strictly with:
(b) WYDOT shall conduct audits and inspections as needed to enforce state and federal laws related to interstate and intrastate motor carrier operations. The Department's authorized employees or agents may enter, inspect, and examine any lands, buildings, and equipment of motor carriers subject to this section to inspect and copy any accounts, books, records, and documents to administer and enforce state and federal laws related to motor carrier operation provided:
(c) When a motor carrier receives a compliance review, the motor carrier shall receive one of the following ratings:
(d) These regulations shall authorize placing a driver out-of-service for driving or working in excess of hours of service or any other conditions identified in the federal safety standards and found by WYDOT to contribute to unsafe operations. The out-of-service conditions shall preclude a driver from driving until the condition for placing the driver out-of-service is remedied. These regulations shall additionally authorize placing a vehicle out-of-service because of mechanical or operational dysfunction causing a vehicle to be unsafe. The out-of-service condition shall preclude using the vehicle until the condition for placing the vehicle out-of-service has been remedied. These regulations shall use the established material from the Commercial Vehicle Safety Alliance (CVSA) in Appendix A of the North American Uniform Out-of-Service Criteria for placing drivers, vehicles, and hazardous materials shipments out-of-service. These regulations shall remain current with North American Uniform Out-of-Service Criteria as changes are made.
045-1 Wyo. Code R. § 1-15