To the extent drivers are shown not to be in compliance with the Federal Motor Carrier Safety Regulations, appropriate corrective action shall be taken by the motor carrier. (2) Motor carriers shall complete the "Motor Carrier Certification of Action Taken" on form MCS 63 in accordance with the terms prescribed thereon. Motor carriers shall return forms MCS 63 to the address indicated upon Form MCS 63 within fifteen (15) days following the date of the vehicle inspection. References Out Of Service External links Can Civilians Use Police Flashing Lights? Vehicle law