The Commercial Driver’s License Information System (CDLIS) is a nationwide computer system that enables state driver licensing agencies (SDLAs) to ensure that each commercial driver has only one driver’s license and one complete driver record. State driver licensing agencies use CDLIS to complete various procedures, including:
CDLIS was established under the Commercial Motor Vehicle Safety Act (CMVSA) of 1986 and is based on the Federal Motor Carrier Safety Regulations (FMCSRs) in 49 CFR 383 and 384.
A CDL and CDLIS Overview for New Users, Release 1.0.0 (10/1/2009) is an illustrated introduction to the commercial driver licensing process, CDLIS, and the associated Federal Motor Carrier Safety Regulations. If you're unfamiliar with CDLIS, read this document before reading the detailed CDLIS documentation below.
Jurisdictions participating in CDLIS:
Driver Licensing Systems