C/TPA & consortium · Houston, TX
DOT Consortium & TPA Services in Houston, TX
Houston anchors one of the largest concentrations of trucking, maritime drayage, and petrochemical transport operations in the country, built around the Port of Houston and the Houston Ship Channel. Companies operating CDL fleets, hazmat haulers, and chassis operators in and around the Ship Channel corridor rely on a compliant Drug & Alcohol Clearinghouse program to keep drivers moving between the port, rail yards, and refinery gates without a compliance gap shutting down dispatch.
What is a DOT consortium / C/TPA?
A DOT consortium pools multiple employers, including owner-operators and small fleets, into a single random testing selection pool, as required under 49 CFR Part 40. As your Consortium/Third-Party Administrator (C/TPA), we manage your random selection and notification, scheduled and unscheduled collections, Clearinghouse queries and reporting, MRO review, and recordkeeping, so you stay audit-ready without building that infrastructure in-house.
Why it matters in Houston
Houston's drayage and chassis-pool operators move continuous container traffic in and out of Barbours Cut and Bayport, often running drivers across multiple motor carrier authorities in a single week, which makes consortium-based random selection far more practical than running a standalone pool for a two- or three-truck operation. We also work with flatbed and tanker carriers serving the Ship Channel refineries and chemical plants along Highway 225, where DOT hazmat endorsement holders face additional scrutiny and where a missed random selection window or a late Clearinghouse query can hold up a driver's dispatch for a load that's already queued at the gate.
Pricing
Consortium enrollment is priced by fleet size: $99 for 1 driver, $199 for 2-5 drivers, $349 for 6-15 drivers, $499 for 16-25 drivers, and $749 for 26-50 drivers. Fleets above 50 drivers receive a custom quote.
Get Me CompliantFrequently asked questions
Do I need a consortium if I only have one or two CDL drivers?
Yes. DOT regulations require every employer with safety-sensitive, DOT-regulated employees to participate in a random testing pool large enough to produce a statistically valid random selection, which is why owner-operators and small fleets join a consortium rather than running their own program.
What does the C/TPA actually handle versus what I handle as the employer?
We manage the random selection pool, selection notifications, scheduling with a certified collection site, Clearinghouse queries, MRO coordination, and recordkeeping. You remain responsible as the DOT-regulated employer for policy, supervisor training, and acting on results, but we handle the administrative and testing logistics.
Can you coordinate testing near the Port of Houston or Ship Channel without pulling a driver off dispatch for half a day?
Yes, we coordinate with collection sites near the Ship Channel corridor and can arrange mobile collection for time-sensitive drayage and tanker operations so a random or post-accident test doesn't strand a loaded trailer at the gate.
What happens if a Clearinghouse query flags a prior violation?
If a pre-employment or annual query shows an unresolved violation, the driver cannot perform safety-sensitive functions until they complete the DOT return-to-duty process with a Substance Abuse Professional. We can walk you through what that process requires before you make a hiring or dispatch decision.
Ready to enroll your Houston fleet?
Join our DOT consortium for random pool management, Clearinghouse queries, and audit-ready recordkeeping.