REGULATOR · DOT & FMCSA Knowledge Center

DOT & FMCSA Knowledge Center

Plain-English DOT and FMCSA guides for truck drivers, built with official-source references and clear verification labels.

Verified guides available now: Hours of Service and Drug & Alcohol Clearinghouse. Personal Conveyance remains under review until official guidance is verified.

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Hours of Service

For most property-carrying truck drivers, the basic federal Hours of Service rule is: take 10 consecutive hours off duty before a shift, do not drive after the 14th hour after coming on duty, drive no more than 11 total

🟢 Verified · Official sources linked

Drug & Alcohol Clearinghouse

The Drug & Alcohol Clearinghouse is an FMCSA online database that tracks CDL/CLP drug and alcohol program violations, employer queries, driver consent, and return-to-duty information. If a driver has a violation, it can

🟢 Verified · Official sources linked

Held under review

Personal Conveyance remains held because official FMCSA guidance was blocked from automated review and needs normal-browser verification before public release.