DOT drug and alcohol compliance for carriers working with brokers

Most questions about DOT drug and alcohol compliance owner operator carriers send us start with one thing: does it even apply to me? It comes up in almost every broker setup. The short version: the testing rules in 49 CFR Part 382 cover carriers whose drivers must hold a CDL, and a one-truck CDL owner operator counts as both employer and driver . Non-CDL trucks, including many 26 ft box trucks rated under 26,001 pounds, usually aren't covered. Start by working out which case is yours.

Which case applies to you?

Pick your truck and whether the driver needs a CDL to drive it. The CDL line sits at 26,001 pounds GVWR for a single vehicle , and at 26,001 pounds GCWR for a combination when the trailer is rated over 10,000 pounds .

Check the ratings first

Depends on the truck's GVWR. Plenty of 26 ft boxes are rated just under 26,001 lb; heavier chassis are over it.

A single vehicle needs a CDL at 26,001 lb GVWR or more. A combination needs one at 26,001 lb GCWR or more when the trailer is rated over 10,000 lb. The ratings on the door stickers decide it, not today's weight. Then come back and pick yes or no.

The four guides

DOT Drug & Alcohol Testing Consortium for Owner-Operators
What a consortium does for a one-truck carrier, what it costs to join and what records it keeps for you.
Owner-Operator DOT Drug Testing Requirements
Who must test, which tests are required, and why non-CDL operators usually fall outside the rule.
FMCSA Clearinghouse Registration for Owner-Operators
Registering in the FMCSA Clearinghouse, running queries and naming a consortium to act for you.
DOT Drug Test Cost and Random Testing Rates
What tests and queries cost, and this year's random testing rates from DOT.

For CDL carriers, the random testing rate is set each year by DOT; for 2026 it's 50% for drugs and 10% for alcohol , and each driver needs at least one Clearinghouse query a year . Brokers increasingly ask for proof of a testing program in setup, especially from new authorities; see dispatch for new authorities for what else they check.

What brokers ask about testing in setup

Broker setup packets often include a question about your drug and alcohol testing program, sometimes with a request for the name of your consortium or a certificate of enrollment. For a CDL carrier, have that ready before you send packets; a missing answer can stall an approval for days. Some brokers also check whether your drivers have Clearinghouse violations, which is another reason to keep queries current.

For a non-CDL truck, the honest answer is that Part 382 doesn't apply. Say so clearly, with your truck's rating, rather than leaving the question blank. A few brokers and shippers have their own screening rules regardless of CDL status; if a load requires it, the broker should tell you before booking, and you can decide whether that freight is worth the extra step.

Compliance in order, setups go faster

We keep your packet complete, including testing records brokers ask for. You confirm every load.

Start dispatch