Turnkey DOT Compliance & Workforce Screening for Texas Fleets
Complete FMCSA, FAA, and FRA drug and alcohol testing, random pool consortium management, DOT physicals, FMCSA Clearinghouse queries, and 24/7 mobile dispatch.
- CLIA Compliant
- AABB Accredited Collector
- SAMHSA Certified Lab
- DOT Compliant
- MRO Verified
- ¡Hablamos Español!

What does a DOT drug test include?
A DOT drug test requires a 5-panel urine screen collected under 49 CFR Part 40 federal guidelines detecting THC, Cocaine, Amphetamines/Methamphetamines, Opioids (including Codeine, Morphine, Heroin, Hydrocodone, Hydromorphone, Oxycodone, Oxymorphone), and PCP. All DOT specimens are processed by a SAMHSA-certified partner laboratory and reviewed by a licensed Medical Review Officer (MRO).
Types of DOT & Employer Testing We Collect
Every test type below is collected at our Marshall office, with compliance support available.
| Test type | When it is used |
|---|---|
| Pre-Employment | Before a new hire starts safety-sensitive duties (required for DOT jobs). |
| Random | Unannounced selections from your testing pool throughout the year. |
| Post-Accident | After a qualifying accident, within the required time limits. |
| Return-to-Duty | After a violation, once a Substance Abuse Professional (SAP) allows the employee to return. |
| Follow-Up | Unannounced tests after return to duty, as set out in the SAP plan. |
Timing and eligibility rules come from 49 CFR Part 40 and your employer program. Call us with questions.
Complete DOT & Workplace Program Management
Everything your company needs to remain fully compliant with federal transportation safety laws and Texas workplace regulations.
Random Testing Consortium Pool
Automated computer-generated random selection pools for FMCSA motor carriers, independent owner-operators, and contractors.
FMCSA Clearinghouse Administration
Driver query execution (pre-employment & annual), violation reporting, and return-to-duty tracking to keep your fleet audit-ready.
DOT Physicals & Medical Cards
Coordinated commercial driver physical examinations by certified Medical Examiners to maintain valid CDL medical cards.
Supervisor Training (DER)
Live and online 2-hour Designated Employer Representative (DER) training on reasonable suspicion drug and alcohol detection.
24/7 Post-Accident Mobile Dispatch
$85On-site emergency mobile collectors dispatched directly to accident scenes or yards within 2 hours across East Texas.
Texas Labor Code § 411.091 Non-DOT
$75Custom drug-free workplace policies, 5/10/12-panel non-DOT drug screens, and hair follicle testing for commercial contractors.
Workplace Testing Quick Guide by Industry
Find the typical testing panels and regulations governing your industry sector in East Texas.
| Industry Sector | Regulated By | Typical Testing Panel | Common Test Reasons |
|---|---|---|---|
| Commercial Trucking & Logistics | FMCSA (DOT 49 CFR Part 40) | 5-Panel DOT Urine + Breath Alcohol | Pre-employment, Random, Post-Accident, Return-to-Duty |
| Pipeline & Hazardous Materials | PHMSA (DOT) | 5-Panel DOT Urine + Alcohol | Pre-employment, Random, Annual Query, Post-Incident |
| Railroads & Transit Fleets | FRA / FTA (DOT) | 5-Panel DOT Urine + Breath Alcohol | Pre-employment, Mandatory Random Pool, Post-Accident |
| Aviation & Flight Maintenance | FAA (DOT) | 5-Panel DOT Urine Screen | Safety-Sensitive Hires, Random Consortium, Periodic |
| Oilfield & Pipeline Services | Non-DOT / Client Required | 10-Panel Urine or Hair Follicle | Site Access Carding, Contractor Onboarding, Random |
| Construction & Manufacturing | OSHA / Texas Labor Code | 5-Panel or 10-Panel Urine Screen | Pre-employment, Post-Injury, Reasonable Suspicion |
L&T Solutions administers both federal DOT mandated programs and customized corporate non-DOT workplace screening programs.
Setting Up Your Employer Account in 3 Easy Steps
Get your fleet or company enrolled with zero hassle.
Account Enrollment
Contact our team to establish your company profile, designate DER contacts, and specify required testing panels.
Consortium & Roster Upload
Upload your active driver or employee roster into our automated random selection pool.
Immediate On-Demand Testing
Send employees to our Marshall clinic or call our 24/7 mobile dispatch line whenever testing is needed.

On-Site CDL Driver & Terminal Yard Collection
Save hours of driver transit time. Our certified DOT specimen collectors travel directly to your terminal, staging yard, or warehouse to perform federal 49 CFR Part 40 compliant collections.
- Federal Chain-of-Custody (CCF) split-specimen protocol
- Minimizes CDL driver downtime and out-of-route travel miles
- Immediate coordination with SAMHSA partner labs and licensed MROs

Workplace & Industrial Shift Drug Screening
Managing pre-employment batches, return-to-duty testing, or reasonable suspicion checks? We provide rapid on-site screening with zero disruption to your operating shifts.
- Comprehensive 5-panel, 10-panel, and expanded workplace panels
- Breath alcohol testing using DOT-approved evidential breath testers
- Clear, auditable documentation keeping your company audit-ready
DOT Compliance Frequently Asked Questions
Are independent owner-operator truck drivers required to join a DOT consortium?
Yes. FMCSA regulations prohibit self-employed CDL drivers from managing their own random testing selection pool. Independent drivers must enroll in an approved consortium like L&T Solutions.
What qualifies as a DOT post-accident drug test requirement?
Under FMCSA rules, a DOT post-accident test is required if the incident involved a human fatality, or if the driver received a moving violation ticket AND a vehicle was towed or medical treatment was administered away from the scene.
How fast can a mobile collector reach an accident scene in Harrison County?
Our 24/7 emergency dispatch unit targets an on-site arrival time within approximately 2 hours across Marshall, Longview, and core East Texas transit corridors.
How do employers access completed test results?
MRO-verified results are delivered securely via encrypted client portal or confidential email as soon as testing and verification are finalized.
Protect Your Fleet & Ensure 100% DOT Compliance Today
Call 877-329-5339 to enroll your business or dispatch an emergency mobile collector right now.