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Proficiency Background Service

Occupational Health & Toxicology

Maintain a Safe, Compliant Workforce

From standard 5-panel pre-employment screens to DOT-mandated consortium testing, we provide legally defensible, MRO-verified clinical testing to protect your organization's liability.

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SAMHSACertified Laboratories
100%MRO Adjudicated
DOTFederal Compliance
Clinical Governance

DOT vs. Non-DOT Compliance

A false positive drug test can lead to devastating wrongful termination lawsuits. To guarantee strict legal defensibility, PBS partners exclusively with SAMHSA-certified laboratories.

Every non-negative result is escalated to a certified Medical Review Officer (MRO). The MRO interviews the candidate to rule out valid prescriptions before finalizing the result, ensuring your HR team makes decisions based on irrefutable clinical facts.

Standard Testing

5-Panel & 10-Panel Matrices

We customize your testing panels based on your corporate risk tolerance and state-specific marijuana legislation.

  • 5-Panel (Standard): Tests for THC, Cocaine, Amphetamines, Opiates, and PCP.
  • 10-Panel (Advanced): Adds Barbiturates, Benzodiazepines, Methadone, Propoxyphene, and Quaaludes. Highly recommended for healthcare and heavy machinery operators.
  • Custom Panels: We can exclude THC for states with legalized recreational use, or add specific synthetic opioid tracking.
Advanced Methodologies

Hair Follicle & Oral Fluid Testing

Standard urinalysis provides a 1-to-3 day window of detection. When your corporate risk policy requires deeper insight, we deploy advanced clinical methodologies.

Hair Follicle Testing

Provides an unimpeachable 90-day window of historical drug use, making it the gold standard for executive hires, safety-sensitive roles, and elite logistics fleets.

Oral Fluid Testing

Virtually impossible to adulterate and highly effective for detecting immediate, recent substance use during post-accident scenarios or reasonable suspicion events.

Deploy Clinical Testing Nationwide

Send candidates to our national network of partner clinics, or deploy our Mobile Fleet directly to your job site.

Talk to a Compliance Specialist →