RAPID TESTING, ACCURATE RESULTS WHEN YOU NEED IT
We perform all DOT and Non-DOT lab tests
RAPID TESTING, ACCURATE RESULTS WHEN YOU NEED IT
We perform all DOT and Non-DOT lab tests
ABOUT US
Dominion Diagnostic Services, LLC is a certified on-site and mobile testing provider serving clients across Washington, D.C., Maryland, Northern Virginia, Fredricksburg, VA, Richmond, VA as well as West Virginia.
We specialize in DOT and Non-DOT drug and alcohol testing, DNA relationship testing, and on-site mobile collection services for organizations that demand precision, compliance, and reliability.
Our mission is simple, to deliver fast, accurate, and fully compliant testing solutions with a customer-first mindset. We believe in professionalism with a personal touch: every client receives the same level of care, attention, and accountability that defines our brand.
Whether you need a one-time collection or a full-service testing partnership, Dominion Diagnostic Services brings certified expertise and responsive service directly to your doorstep, ensuring your program runs smoothly, safely, and in full regulatory compliance.
Services We Offer
DOT Drug Testing (49 CFR Part 40 Compliant)
Dominion Diagnostic Services provides certified Department of Transportation (DOT) drug testing in full compliance with 49 CFR Part 40 and FMCSA regulations. Our collectors are trained and certified to ensure every step, from chain of custody to lab submission, is handled with precision and professionalism. We help employers stay audit-ready and employees stay compliant, offering both in-clinic and mobile collections across the DMV region and beyond.
Non DOT Drug Testing
Our Non-DOT testing services are designed for private employers, contractors, and organizations outside DOT regulation who still demand accuracy and accountability. Whether you require 5-panel or 10-panel screenings, Dominion Diagnostic Services delivers fast, reliable results to support a safe, drug-free workplace. We tailor testing panels to your company’s needs while maintaining the same strict chain-of-custody protocols used in federal testing.
Breath Alcohol Testing (BAT)
Dominion Diagnostic Services offers Breath Alcohol Testing (BAT) using approved devices and certified technicians. Whether part of a random program, post-accident, or reasonable suspicion test, we provide immediate, documented results to ensure your organization remains compliant and your workforce stays safe.
Pre-Employment Testing
Before onboarding a new hire, protect your business with our pre-employment drug and alcohol testing. We deliver rapid turnaround times and detailed reporting, helping employers make informed hiring decisions while maintaining compliance and minimizing downtime.
Random Employee Testing
Our random employee testing services help ensure ongoing compliance and reinforce a culture of accountability and safety. Dominion Diagnostic Services works with your HR or compliance team to schedule and manage recurring employee tests that meet both internal and regulatory requirements.
Post Accident Testing
When time is critical, Dominion Diagnostic Services provides immediate post-accident response across the DMV region and beyond. Our mobile team is on call 24/7 to perform DOT or Non-DOT drug and alcohol collections on-site, minimizing delays and ensuring full documentation for your incident file.
Court Ordered And Probation Testing
We provide court-ordered, probation, and legal compliance drug testing for individuals and agencies that require certified results. Our strict confidentiality, secure reporting, and verified lab partnerships ensure that every result meets legal and evidentiary standards.
DNA Testing
Dominion Diagnostic Services offers DNA testing for paternity, immigration, and relationship verification. Our certified collectors perform painless, buccal swab collections with chain-of-custody documentation accepted by courts, agencies, and attorneys nationwide.
Random Testing Program Administration and Consortium Management
For DOT-regulated employers and TPAs, we offer random testing program administration and consortium management. We handle the random selection, notifications, and compliance tracking—reducing your administrative burden while ensuring audit readiness year-round.
Return To Duty
When an employee completes a substance abuse program, Dominion Diagnostic Services ensures a seamless return-to-duty process. We coordinate follow-up testing plans that meet regulatory timelines and provide the documentation needed for compliance verification.
On Site and Mobile Testing
We bring the lab to you. Dominion Diagnostic Services offers fully mobile drug and alcohol testing that can be performed at your job site, school, or event. This saves time, eliminates travel, and keeps your operations running smoothly, all with the same accuracy, confidentiality, and compliance as traditional clinic-based testing.