safety sensitive functions

Random DOT Drug Test on the Road: What Owner-Operators Need to Know

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Truck driver checking phone beside semi truck about how long you have after random DOT drug test notification

How long do you have to take a random DOT drug test once notified?

Once notified, you must proceed immediately to testing after completing any safety-sensitive function already in progress. Unnecessary delay can be treated as a refusal under FMCSA rules.

What Happens If You Don’t Consent to a Clearinghouse Query? (Owner-Operator Rules Explained)

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Truck driver reviewing paperwork beside a semi truck about refusing FMCSA Clearinghouse query consent

What happens if you don’t consent to a Clearinghouse query?
If you refuse to provide required consent, your employer cannot allow you to perform safety-sensitive functions. Owner-operators must also complete annual Clearinghouse limited queries through a designated C/TPA to remain compliant.