Where does MCS get the number of commercial motor vehicles on my renewal form?
The information is taken from the number of commercial motor vehicles listed on the last MCS-150 form you submitted with the Federal Motor Carrier Safety Administration (FMCSA). Beginning with UCR 2010, the number of commercial motor vehicle power units determines which bracket applies. If this number is incorrect, you must refile an MCS-150 before submitting a UCR form. You can update online at: www.fmcsa.dot.gov/registration-licensing/online-registration/onlineregdescription.htm.