A comprehensive professional facility serving businesses, drivers, and individuals across Laredo and surrounding areas. DOT and non-DOT testing for employment, compliance, and personal needs — no contracts, no appointment required.
Fully Compliant with Federal & State Regulations:
D & A On Site Testing is Laredo's premier DOT compliance and drug testing office, operating from our professional facility at 416 Shiloh Dr., Suite C6, Laredo, TX 78045. Our certified, trained, and experienced team delivers a comprehensive range of DOT and non-DOT drug and alcohol testing services — for employers, commercial drivers, and individuals — with precision, confidentiality, and full federal regulatory compliance.
We help companies of all sizes build and maintain drug-free workplace programs: pre-employment screening, random consortiums, return-to-duty testing, MRO coordination, and FMCSA Clearinghouse management. Walk-ins are always welcome — no appointment necessary. Our office maintains dedicated on-call staffing for post-accident and time-sensitive situations, so your compliance obligations are handled reliably whether during business hours or after.
24/7
Post-Accident & Emergency Support
100%
DOT & Federal Compliant Testing
A full spectrum of DOT and non-DOT testing solutions, delivered with precision and strict regulatory compliance from our professional office in Laredo, TX.
Comprehensive urine, and breath alcohol testing fully compliant with Department of Transportation regulations. Covers pre-employment, random, return-to-duty, and follow-up collections.
Protect your business from day one with efficient pre-hire screenings and unbiased, consortium-style random testing programs — including free random selections for enrolled employers.
Rapid, legally defensible testing following workplace incidents or behavioral concerns. On-call around the clock for post-accident and after-hours needs, including reasonable suspicion testing.
Certified DOT and non-DOT physical examinations for commercial drivers and safety-sensitive workers, ensuring full FMCSA medical compliance so your fleet stays road-legal.
Contact us today to schedule testing at our office or discuss a custom compliance program for your business in Laredo.
Office hours: Mon–Fri, 8:30 AM – 5:30 PM
956-286-4208On-call 24/7 for post-accident & after-hours testing.
416 Shiloh Dr., Suite C6
Laredo, TX 78045
Serving Laredo and surrounding areas.