DOT drug and alcohol testing requirements for small carriers
If you have drivers who need a CDL, including yourself, you need a DOT drug and alcohol testing program from the day you start operating. For a one-truck owner-operator that means joining a consortium. Here is who is covered, the six tests, the random rates, and the paperwork, with the rule behind each item.
Last reviewed: September 2026, against 49 CFR Parts 382 and 40 on eCFR and the DOT's 2026 random rate table. Not legal advice.
Who is covered
Part 382 covers every driver who operates a commercial motor vehicle that requires a CDL, in interstate or intrastate commerce, and every employer of those drivers 382.103. "Driver" includes full-time, part-time, occasional, and leased drivers, and owner-operators 382.107. For these rules a CDL vehicle is one of 26,001 lbs or more, a combination of 26,001 lbs or more towing over 10,000 lbs, a vehicle designed for 16 or more people, or any placarded hazmat load.
The program has to be in place on the day you begin operating, not after your first hire 382.115(a). Drivers who do not need a CDL are not covered and may not be put in your DOT pool.
Owner-operators and consortiums
If you are the only driver, you are both the employer and the driver, and your random pool must hold two or more covered drivers 382.103(b). You cannot run randoms on yourself. You join a consortium / third-party administrator (C/TPA) that puts you in a larger pool, makes the random selections, and usually coordinates the collection sites and the medical review officer.
A carrier with more than one CDL driver may run its own random program or use a C/TPA. Either way, the carrier stays responsible: you must make sure the C/TPA tests at the required rate and that only covered drivers are in the pool 382.305(j)(2).
FMCSA's consortium requirement is for one-driver carriers that are not leased to another motor carrier. Owner-operators also have Clearinghouse duties; see the Clearinghouse guide.
The six tests
| Test | When | Rule |
|---|---|---|
| Pre-employment | Drug test with a verified negative result before the driver's first safety-sensitive function. Alcohol testing is optional, but if you do it, you do it for everyone | 382.301 |
| Random | Unannounced, spread through the year, at the minimum annual rate (below) | 382.305 |
| Post-accident | After a qualifying crash (table below) | 382.303 |
| Reasonable suspicion | When a trained supervisor observes specific signs of use in appearance, behavior, speech, or odor. The observations are written down and signed within 24 hours or before results come back, whichever is first | 382.307 |
| Return-to-duty | After a violation, once a substance abuse professional (SAP) says the driver has completed education or treatment. Must be negative before the driver goes back to work | 382.309, 40.305 |
| Follow-up | Unannounced tests set by the SAP: at least six in the first 12 months back on duty, and the SAP may extend them up to four more years | 382.311, 40.307 |
Before each test, tell the driver it is required by the DOT rules 382.113.
Random testing
| 2026 FMCSA minimum rate | Of what |
|---|---|
| 50% for drugs | The average number of driver positions in the pool over the year |
| 10% for alcohol | The average number of driver positions in the pool over the year |
These are the FMCSA rates for calendar year 2026, unchanged since 2020 382.305(b). Rules for the draw:
- Every covered driver is in the pool, including part-time drivers, and only covered drivers are 382.305(j)(1)
- Selection is by a scientifically valid method, and every driver has an equal chance each time, even someone tested last quarter 382.305(i)
- A selected driver is tested within that selection period and goes to the collection site immediately after being told 382.305(i)(3), (l)
- Tests are unannounced and spread reasonably through the year 382.305(k)
- Alcohol tests happen only just before, during, or just after the driver's safety-sensitive work 382.305(m)
Post-accident testing
Applies to a crash involving a CMV on a public road. Test each surviving driver as soon as practicable 382.303:
| The crash involved | Driver cited? | Test required? |
|---|---|---|
| A death | Yes or no | Yes, drug and alcohol |
| An injury treated away from the scene | Yes | Yes |
| An injury treated away from the scene | No | No |
| A vehicle towed away with disabling damage | Yes | Yes |
| A vehicle towed away with disabling damage | No | No |
- Citation windows: the citation must come within 8 hours for the alcohol test and within 32 hours for the drug test 382.303(a)(2), (b)(2)
- Alcohol: if not done within 2 hours, write down why. After 8 hours, stop trying and write down why 382.303(d)(1)
- Drugs: after 32 hours, stop trying and write down why 382.303(d)(2)
- The driver may not drink alcohol for 8 hours after the crash or until tested, whichever is first 382.209
- A breath, blood, or urine test by police counts if it meets the applicable rules and you get the result 382.303(g)
- Give every driver the post-accident information, procedures, and instructions before they drive 382.303(f)
What is tested and what counts as a violation
Every DOT drug test covers five drug classes: marijuana, cocaine, amphetamines, opioids, and PCP 40.82. A verified positive, an adulterated or substituted specimen, or a refusal takes the driver off safety-sensitive work until the return-to-duty process is done 382.215, 382.211, 382.503.
- Alcohol 0.04 or higher: a violation. Off duty until the return-to-duty process is done 382.201
- Alcohol 0.02 to 0.039: not a violation, but the driver is off duty until the next regularly scheduled duty period and at least 24 hours 382.505
- No alcohol within 4 hours before going on duty, and none on duty 382.205, 382.207
The paperwork an auditor asks for
- Consortium / C/TPA agreement and proof of enrollment in a random pool 382.305, 382.401(c)(6)
- Written drug and alcohol policy covering the twelve required topics, given to every driver before testing starts and to each new driver 382.601(a)-(b). Our free policy outline lists them
- Signed receipt of the policy from every driver 382.601(d)
- Supervisor training certificates: 60 minutes on alcohol and 60 minutes on drugs for anyone who supervises drivers. One time; no refresher required 382.603
- Pre-employment drug test result for each driver, dated before the first trip 382.301
- Random selection records and results 382.401(c)(1)(ii)
- Post-accident and reasonable-suspicion records, including the reasons a test was not done in time 382.303(d), 382.307(f)
- Clearinghouse registration and query records 382.711, 382.701
- Annual MIS summary, only if FMCSA asks for it. A request in January is due March 15 382.403
Keep these records in a secure place with controlled access 382.401(a). When FMCSA asks, you have two business days to produce them at your principal place of business 382.401(d).
How long to keep records
| Record | Keep for | Rule |
|---|---|---|
| Verified positive drug tests, alcohol results of 0.02 or higher, refusals, SAP evaluations and referrals, records of violations, program administration records, MIS summaries | 5 years | 382.401(b)(1) |
| Collection process records, such as random selection documents and the paperwork behind post-accident and reasonable-suspicion decisions | 2 years | 382.401(b)(2) |
| Negative and canceled drug tests, alcohol results below 0.02 | 1 year | 382.401(b)(3) |
| Supervisor training and driver education records, including signed policy receipts | While the person is in that role, plus 2 years | 382.401(b)(4) |
Keep the testing program on one calendar
The DOT Binder records your consortium enrollment, each driver's pre-employment drug test, policy receipts, supervisor training, and Clearinghouse queries, and flags anything missing before an auditor does. It also tracks driver files, medical cards, annual inspections, insurance, and your MCS-150. From $79 a month, 14-day free trial, no card.
Start free trialQuestions
Can an owner-operator run his own random testing program? No. A carrier whose only driver is the owner must be in a random pool of two or more covered drivers 382.103(b), which in practice means joining a consortium. A carrier with more than one CDL driver may run its own pool or use a consortium or third-party administrator.
How many random tests do I need in 2026? FMCSA's minimum rates for 2026 are 50% of the average number of driver positions for drugs and 10% for alcohol, unchanged since 2020. If you run your own pool of 10 drivers, that is at least 5 random drug tests and 1 random alcohol test over the year. In a consortium, the consortium's pool has to meet the rate.
Can a new driver start before the drug test result comes back? No. You must have a verified negative result from the medical review officer or your C/TPA before the driver's first safety-sensitive function 382.301(a). The narrow exception in 382.301(b) requires documented proof of recent participation in another DOT testing program.
Do non-CDL drivers need DOT drug testing? No. Part 382 covers drivers who need a CDL. You may test other drivers under your own company policy, but not as DOT tests, and they must be in a pool completely separate from your DOT pool.
Marijuana is legal in my state. Does that change anything? No. Marijuana metabolites are one of the five drug classes in every DOT drug test 40.82, and Part 382 overrides state laws that conflict with it 382.109.