Drug & Alcohol Program for Fleets

Who the program covers

Part 382 applies to every driver operating a commercial motor vehicle that requires a CDL. The CMV definition is the §390.5 trifecta: 26,001 lbs GVWR or more, 16+ passengers, or any vehicle hauling placardable hazmat. Both interstate and intrastate operations are covered; the program follows the driver, not just the carrier’s authority class.

One-driver owner-operators must be enrolled in a third-party consortium, because a carrier cannot run a random-selection pool against itself with statistical validity. Two-driver fleets technically can run an in-house pool but virtually all join a C/TPA for the same reason. The economics break even somewhere around 50–100 drivers; above that, larger fleets often bring random selection and MRO services in-house.

1. Adopt a written drug & alcohol policy

Under 49 CFR §382.601, every covered employer must produce a written policy that includes: the categories of drivers subject to testing, the prohibited conduct list, what circumstances trigger each test type, the consequences of a violation, and the name of the Designated Employer Representative (DER) who receives test results.

Every CDL driver gets the policy on hire and signs a certificate of receipt. New employees must receive the policy before performing any safety-sensitive function. The policy is also re-distributed whenever it is updated.

2. Select a C/TPA (or build the program in-house)

A Consortium / Third-Party Administrator (C/TPA) aggregates carriers and provides: pool management, random selection, lab coordination (typically SAMHSA-certified labs), Medical Review Officer (MRO) verification, Clearinghouse posting on the carrier’s behalf, and SAP referrals after a violation.

For a small or mid-size fleet, C/TPA membership runs $30–$80 per driver per year base, plus per-test costs ($45–$80 for a urine drug test, $25–$40 for evidential breath alcohol). Choosing a C/TPA: look for SAMHSA-certified lab partnerships, an MRO available by phone for unusual results, a Clearinghouse integration that posts violations same-day, and a written contract that specifies who pays for tests ordered by FMCSA outside the random schedule.

Fleets above 50–100 drivers sometimes pull random selection in-house using FMCSA-approved randomization software, contract directly with a SAMHSA lab, and retain a contract MRO. The break-even point depends heavily on the carrier’s existing safety-administration headcount.

3. Build the random testing pool

Every CDL driver employed by the carrier goes into the random pool. The pool is the basis for the FMCSA random selection — if a driver is not in the pool, that driver is not subject to random testing, which is itself an automatic audit failure.

Two pool structures are allowed:

• Single-employer pool. All the carrier’s CDL drivers, no one else. Works for fleets large enough to produce statistically valid quarterly selections (typically 50+ drivers).
• Consortium pool. The C/TPA aggregates many smaller carriers’ drivers into one pool. Random selection draws against the aggregate, then assigns selected drivers back to their employers for collection. This is the standard structure for fleets under 50 drivers.

The C/TPA pulls selections at least quarterly. Some C/TPAs run monthly to spread the collection load across the calendar year — FMCSA allows that; what is required is that the annual rate hits 50%/10% by year-end.

4. Pre-employment tests + Clearinghouse query

Before any CDL driver performs a safety-sensitive function for the carrier the first time:

• Drug test. Required under 49 CFR §382.301. Negative result must be in hand before first dispatch.
• Alcohol test. Optional under §382.301(c) but allowed at the employer’s option.
• Clearinghouse full query. Required under 49 CFR Part 382 Subpart G. The driver provides electronic consent in their Clearinghouse account; the carrier queries; results return in seconds. Cost: $1.25 per query through the FMCSA portal.
• Previous-employer information. Under 49 CFR §382.413, the carrier must request testing history from the driver’s past DOT-regulated employers covering the prior 3 years.

5. Run quarterly random selections

Under 49 CFR §382.305, the carrier (or C/TPA) selects random drivers each quarter and notifies them immediately. The selected driver must report to the collection site as soon as possible — in practice, the same day, but no longer than the rest of the work shift.

Three operational rules apply to randoms:

• Selections are unannounced and unpredictable. The driver and the dispatcher learn at the same moment.
• Each driver in the pool must have an equal chance of being selected in every selection period (so re-pooling is allowed but selection cannot be skewed).
• Selections must continue throughout the calendar year — you cannot front-load Q1 or back-load Q4.

Operational excuses (the truck is on a long-haul lane, the driver is at a customer dock) do not exempt the test. The driver reports as soon as they reach a collection site. Late reports are treated as refusals if the delay is unreasonable.

6. Post-accident, reasonable suspicion, RTD, follow-up

Beyond pre-employment and random, four other test types apply on a triggered basis:

• Post-accident. Required after a fatality, after any accident where a driver receives a citation and there is bodily injury requiring medical attention, or after a citation plus disabling damage requiring tow-away. Alcohol test within 8 hours; drug test within 32 hours. Codified at 49 CFR §382.303.
• Reasonable suspicion. Ordered by a supervisor trained under 49 CFR §382.603. The supervisor needs documented observations (smell, behavior, physical signs).
• Return-to-duty (RTD). After a driver enters violation status, they must complete SAP evaluation, prescribed education/treatment, a negative RTD test, and a return-to-duty plan before performing safety-sensitive functions.
• Follow-up. After RTD, the SAP prescribes a follow-up testing schedule: minimum 6 tests in the first 12 months, with discretion to extend up to 5 years.

7. Report to the FMCSA Clearinghouse

Under 49 CFR §382.601 and Part 382 Subpart G, every violation, refusal, and RTD milestone must be reported to the Clearinghouse within 3 business days. Reportable events include:

• Positive drug test (after MRO verification).
• Positive alcohol test (0.04 BAC or higher).
• Refusal to test (failure to appear, adulteration, etc.).
• Actual-knowledge events (supervisor observation of use).
• RTD process milestones (SAP eval complete, RTD test negative).

The Clearinghouse is the authoritative source. Carriers run annual limited queries on every current CDL driver to confirm none have unresolved violations. Drivers in violation status who change employers are surfaced through the new employer’s pre-employment full query.

See our new-entrant audit guide for how Clearinghouse compliance is verified during the first FMCSA review.

Record retention

Three retention windows apply under 49 CFR §382.401:

• 5 years: Positive drug tests, alcohol tests at 0.02 or higher, refusals, RTD records, and annual MIS reports.
• 3 years: Pre-employment information requests sent to past employers.
• 1 year: Negative pre-employment drug test results.

C/TPAs typically retain records for the carrier and produce them on demand for FMCSA audits. The retention obligation belongs to the carrier even when the records are held by a third party.

Single-employer pool or consortium pool?

The mistakes that turn into audit findings

• Dispatching before the pre-employment negative. Auto-fail.
• No documented random selections. An “active C/TPA membership” is not enough — the auditor wants the per-quarter selection report.
• Missing Clearinghouse pre-employment full queries. A full query is required even if the driver has a clean record; the query itself must be on file.
• Out-of-date supervisor reasonable-suspicion training. §382.603 requires 60 minutes of drug training plus 60 minutes of alcohol training for every supervisor authorized to order suspicion tests.
• Post-accident testing not run when required. Drivers in fatal or injury-citation accidents often skip the test in the chaos of the scene; that becomes a finding 18 months later.
• SAP process incomplete. A driver returns to duty before the RTD-negative is on file or before the follow-up schedule is established. Both are violations.