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Resource Center

Occupational Health & DOT Compliance Guides

Plain-English answers to the questions drivers, employers, and safety managers ask most — written and reviewed by a certified medical examiner.

DOT Physical Requirements 2026: The Complete Driver Checklist

Everything a commercial driver needs to know before a DOT physical — what the exam covers, the FMCSA medical standards, what to bring, and how to avoid a failed or deferred certificate.

What Disqualifies You From a DOT Physical?

The conditions most likely to cause a failed or deferred DOT medical card — and, just as important, how many of them can still be certified with the right documentation.

FMCSA Drug & Alcohol Testing Rules, Explained

What every CDL driver and motor carrier needs to know about DOT drug and alcohol testing — the six test types, what’s screened, random rates, the Clearinghouse, and consortium requirements.

The DOT Return-to-Duty Process, Step by Step

After a positive test or refusal, federal rules require a specific path back to safety-sensitive work. Here is exactly how the return-to-duty (RTD) process works and how long it takes.

CDL Medical Card Renewal: How and When to Renew

Your DOT medical card expires — and letting it lapse can downgrade your CDL. Here is how to renew on time, submit it to your state, and avoid a license downgrade.

Employer Screening

DOT Physical vs. Pre-Employment Physical: What’s the Difference?

They sound similar but serve different purposes. Here is how a DOT physical and a pre-employment physical differ — and how to know which one you or your new hire needs.

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