Drug & alcohol programs
DOT and non-DOT screening, random programs, and onsite collections.
Drug · Alcohol · DNA testing
Testing you
can trust.
Accurate, confidential drug, alcohol, and DNA testing for employers, courts, agencies, and individuals, with collection sites across the United States.
★★★★★151 Google reviews
No insurance needed
DOT & non-DOT
DNA & paternity
Legal, peace-of-mind, and prenatal paternity testing handled with discretion.
Court-ordered testing
Urine, hair, and nail testing for courts, attorneys, and agencies.
Services
What we test
From one pre-employment screen to a statewide random program, every collection follows chain-of-custody procedures and stays confidential.
Employer drug & alcohol
Complete programs that keep your business compliant and your workplace drug-free.
- DOT and non-DOT drug screening
- Pre-employment, random, post-accident, reasonable suspicion
- Breath and saliva alcohol testing
- Onsite collections at your location
DNA & paternity
Accredited DNA testing for answers that matter, handled with care from collection to result.
- Legal and peace-of-mind paternity
- Prenatal paternity testing
- Immigration and relationship DNA
- Peekaboo early gender test
Individual & court-ordered
Personal and legal testing for individuals, attorneys, courts, and government agencies.
- Court-ordered drug and alcohol testing
- Hair and nail long-window testing
- Fingerprinting and background checks
- Walk-in personal testing
Our lab partners
Certified laboratories and networks behind every NTS result
Onsite / mobile testing
We bring testing to you
Our mobile collectors come to your job site, office, or home for drug, alcohol, and DNA testing, with the same chain of custody as our clinic.
Job sitesOfficesHomesGroup & random testingPost-accident
NTS Connect results portal
Your results, online 24/7
Employers and clients view and manage test results anytime, from any device. No waiting on paperwork and no extra trips to our office.
- Available 24/7Check results from home, work, or the road.
- Secure & HIPAA-compliantEncrypted, access-controlled, and private.
- FastResults post as soon as they're ready.
- Easy to useA simple dashboard anyone can navigate.
Specimen types
The right test, every time
Each specimen covers a different detection window. Not sure which you need? Call us and we'll match the test to your requirement.
Urine
Pre-employment, random, DOT, and court-ordered testing.
About 1–4 daysOral fluid
Post-accident, reasonable suspicion, workplace testing.
About 1–2 daysBlood
Post-accident, reasonable suspicion, forensic testing.
Hours to 2 daysHair
Pre-employment, legal, and monitoring programs.
Up to 90 daysNail
Court-ordered testing and treatment monitoring.
About 3–6 monthsDetection windows are typical ranges and vary by substance, dose, and the individual.
Why NTS
Built for compliance
Employers, courts, and families count on us for results they can stand behind.
Rapid turnaround
Many non-DOT results are ready the same day.
Results portal
View and manage results 24/7 through a secure online portal.
Confidential
Every collection meets regulatory standards and protects your privacy.
Paperless
Electronic chain of custody (eCCF) cuts paperwork and delays.
Nationwide
Collection sites across the United States for multi-location employers.
Onsite service
We bring the collector to your jobsite or office.
Reviews
What clients say
"I work for a government agency and needed a DNA test four hours away at a correctional facility. National Testing Services made it happen. Professional and reliable."
"Extremely helpful and friendly every time I've visited. They help me find the right service so it's the most cost-effective."
"Friendly, clean, and organized. Didn't wait in line long at all."
Contact
Get tested or set up your program
Call the office for walk-ins and DNA appointments, or the onsite line to bring a collector to your business.