Demonstrating our commitment to delivering test procedures of the highest quality and following industry best practices, we maintain licensure and certifications from several state and federal agencies. This includes certification from the U.S. Department of Health and Human Services (CMS / CLIA). We also subscribe to the College of American Pathologists (CAP) proficiency-testing program. In maintaining the highest industry standards in our labs, we routinely submit to the rigorous processes of inspection, and successfully complete various proficiency tests and data audits.

Dept of health

CLIA Certificate of Compliance

Dept of health

State of California
Department of Health Services
Clinical Laboratory License

Dept of health

American Association of Bioanalysts (AAB)
Urine Drug Screening & On-site Certificate of Proficiency Testing Participation

Dept of health

College of American Pathologists (CAP)
Urine Drug Screening & Confirmation
CAP-FUDT & On-site Certificate of
Proficiency Testing Participation

Dept of health

U.S. Department of Justice
Drug Enforcement Administration
Controlled Substance Registration Certificate

Texas Forensic Science Commission

Texas Forensic Science Commission
Accreditation for Toxicology

Dept of health

Maryland Department of
Health & Mental Hygiene
Medical Laboratory / Drugs of Abuse

Dept of health

Pennsylvania Department of Health
Clinical & Toxicology Laboratory Permit

Dept of health

State of Rhode Island and
Providence Plantations
Department of Health License

To learn more about Redwood Toxicology Laboratory call:


Contact Us

Laboratory: 800-255-2159

Products: 877-444-0049