A. You can obtain a U.S. DOT number on line at http://www.safer.fmcsa.dot.gov
. Click on "FMCSA Registration & Updates" and follow the instructions for obtaining a U.S. DOT number. If you do not have internet access, the LA IRP Issuance Office can assist you with obtaining your U.S. DOT number or you may contact the Federal Motor Carrier Safety Administration, U. S. Department of Transportation for assistance.