MCS-150 is a form required by the Federal Motor Carrier Safety Administration (FMCSA) to either obtain or renew a USDOT number, which is an essential part of maintaining operating authority for carriers. The form includes information about the companys contact information, whether it is operating intrastate or interstate, the type of goods it handles, power units, number of drivers, and mileage for every year. The MCS-150 form needs to be updated every two years, and it can be done online or by mail, fax, or web form. The deadline for updating the form varies from carrier to carrier, and it is based on the last two digits of the USDOT number. The FMCSA uses the information provided in the report to calculate safety scores according to its new safety measurement system, Compliance, Safety, Accountability (CSA), and inaccurate data can negatively impact safety performance scores. Carriers that fail to complete their renewal by the biennial deadline can fall out of compliance with MCS-150 registration, and the FMCSA will deactivate the motor carriers USDOT number. The company can also face penalties of about $1,000 every day, and the penalty cannot exceed $10,000. Therefore, it is necessary to update the MCS-150 form regularly, even if no information has changed, to improve Compliance, Safety, and Accountability (CSA) scores.