FMCSA operating authority is often identified as an "MC," "FF," or "MX" number, depending on the type of authority that is granted. You'll also need to complete either an OP1 or OP1 (P) form in addition to the BOC3 form.Apply for your trucking authority. All commercial carriers with qualifying heavy vehicles must complete and file Form 2290 each year to legally operate without tax evasion penalties. It's the letter from FMCSA with the date your authority went active and what authority was granted. Complete Trucking Authority Packages. Our complete authority packages are designed to give you every filing actually required to get you on the road. U.S. Department of Transportation Marks Significant Progress on Efforts to Shore up Key Supply Chains and Lays Out Recommendations for Continued Success. San Diego. 312-735-0097. (619) 545-0097. DC5. Sigonella.