Attention:
- CDLIS.DOT.GOV will conduct system maintenance on Wednesday, July 23rd, 2025, from 6:00 p.m. EDT until 10:00 p.m. EDT. Users may experience intermittent outages. This date and time were selected to limit the impact on our users.
- The Drug and Alcohol Clearinghouse will be unavailable on Saturday, July 19, 2025 from 11:00PM ET until 3:00AM ET Sunday, July 20, due to scheduled system maintenance.
Contact.
Phone
FMCSA Gateway Help Desk: 855.537.7517
FMCSA Drug and Alcohol Clearinghouse Help Desk: 844.955.0207
FMCSA Login.gov Help Desk: 844.875.6446
FMCSA Gateway Help Desk: fmcsasupport_NOREPLY@obxtek.com
FMCSA Drug and Alcohol Clearinghouse Help Desk: clearinghouse@dot.gov
FMCSA Login.gov Help Desk: Login.gov Contact Page