FMCSA proposes to amend the Federal Motor Carrier Safety Regulations (FMCSRs) to revise the current methodology for issuance of a safety fitness determination (SFD) for motor carriers. The proposed new methodologies would determine when a motor carrier is not fit to operate commercial motor vehicles (CMVs) in or affecting interstate commerce based on (1) the carrier’s on-road safety data in relation to five of the Agency’s seven Behavior Analysis and Safety Improvement Categories (BASICs); (2) an investigation; or (3) a combination of on-road safety data and investigation information. The intended effect of this action is to more effectively use FMCSA data and resources to identify unfit motor carriers and to remove them from the Nation’s roadways.