Certified Drug Testing You Can Count On
DOT & Non-DOT testing for employers, government contractors, and individuals — backed by the nation's top certified labs.
Comprehensive Testing Services
Every test type, every compliance requirement — handled with precision by certified professionals.
Urine Drug Test
The gold standard for workplace drug screening. Detects a wide panel of substances with lab-verified accuracy.
Learn MoreOral Swab Test
Non-invasive saliva collection for rapid, on-site results. Ideal for post-accident and reasonable suspicion testing.
Learn MoreHair Follicle Test
Detects drug use up to 90 days. Preferred for pre-employment screening requiring extended detection windows.
Learn MoreNail Test
Up to 6 months of detection history. Highly resistant to adulteration — ideal for legal and compliance purposes.
Learn MoreFingerprint Test
Cutting-edge biometric drug screening. Non-invasive, fast, and tamper-proof for modern compliance programs.
Learn MoreMobile Testing
We bring certified testing directly to your worksite, fleet, or facility — minimizing downtime and maximizing compliance.
Learn MoreDOT & Non-DOT Testing Programs
DOT Compliance Testing
Federally mandated testing for safety-sensitive industries under FMCSA, FAA, FTA, PHMSA, and FRA regulations.
- Pre-employment, random, post-accident, and return-to-duty
- MRO-reviewed results for full regulatory compliance
- Chain-of-custody documentation included
- Covers transportation, aviation, rail, and pipeline sectors
- Compliant with 49 CFR Part 40
Non-DOT Workplace Testing
Custom drug testing programs built around your company's policies — flexible, fast, and fully managed.
- Pre-employment and random screening programs
- Post-accident and reasonable suspicion testing
- Return-to-duty and follow-up testing
- Custom panel configurations available
- Employer program management support
Why Choose Premier Diagnostic Solutions
Top-Certified Labs
All specimens are processed by SAMHSA-certified and CAP-accredited laboratories — the highest standard in the industry. No shortcuts, no compromises.
Fast Turnaround
Most results delivered within 24–48 hours. Rapid instant testing options available for time-sensitive situations.
Mobile & On-Site Testing
Our certified collectors come to your location — worksites, fleets, offices, or facilities — eliminating employee downtime.
DOT Compliance Experts
Deep expertise in federal DOT regulations across all covered industries. We keep your program audit-ready at all times.
Who We Serve
Employers & HR Teams
Streamlined testing programs for companies of any size. We handle compliance so you can focus on your business.
Government Contractors
Certified testing that meets federal contract requirements and agency-specific drug-free workplace mandates.
Transportation & Logistics
Full DOT compliance for trucking, fleet, and transportation companies under FMCSA regulations.
Healthcare Organizations
Sensitive, confidential testing for healthcare providers and staff with strict chain-of-custody protocols.
Individuals
Court-ordered, personal, or pre-employment testing for individuals — fast, private, and professionally handled.
Trusted by Organizations Nationwide
"Accurate results, fast turnaround, and a team that understands compliance."
Ready to Get Started?
Schedule your test today or contact us to build a custom testing program for your organization.