Proficiency Testing That Powers Compliance

Built for ISO/IEC 17025:2017 accredited laboratories seeking consistent, year-round PT coverage. Our all-inclusive program delivers four quarterly PT rounds designed to reflect real-world testing conditions—without gaps or surprises.

• Quarterly PT shipments (3 total)
• Full analyte coverage reportable by year-end
• Multiple realistic matrices for performance validation
• Secure digital result submission with final reports in 15 business days
• Discounted corrective-action re-test lot included
• Free shipping on every round

No missed analytes. No supplemental purchases. Just dependable, comprehensive proficiency testing—start to finish.

Simplify compliance  with state-specific PT programs built precisely to meet your regulator’s requirements.

• Customized studies for Michigan (CRA), Arizona, and Florida (DOH)
• Exact analyte lists and matrices required by each state
• State-formatted reports ready for direct portal upload
• Predictable schedule with three shipments per year
• Multi-state bundle options for multi-license laboratories
• Exclusive discounted corrective action lots, available only from S&A Scientific

No guesswork. No reformatting. Just regulator-ready proficiency testing.

Ensure your cannabis lab meets regulatory and accreditation requirements with reliable proficiency testing from S&A Scientific.

• PT studies designed for cannabinoids, contaminants, and potency testing
• Blind samples with accurate, verified values
• Supports method verification, staff competency, corrective actions, and quality assurance

Stay confident in your results, maintain compliance, and optimize your lab’s performance with trusted Cannabis PT solutions.

When compliance can't wait — No more waiting for scheduled studies. Express PTs give your lab the flexibility to act on your timeline.

• Flexible ordering and shipping to fit your schedule
• Full 45-day evaluation period
• Blind samples with accelerated delivery and results
• Ideal for method verification, competency checks, corrective actions, scope expansions, and regulatory requirement compliance.

Stay fully compliant without disrupting operations. Express PTs = Fast. Flexible. Fully Compliant.

  Practice Without Pressure — Strengthen your lab’s skills with Internal PTs, designed for training, method optimization, and quality improvement—no accreditation stress.

• Produced separately from official PT studies
• Known assigned values included for immediate learning
• Ideal for staff onboarding, troubleshooting, method refinement, and internal audits
• Strictly for education and internal QC—not for regulatory or accreditation use

Build confidence, improve performance, and elevate your team’s precision. Lab managers and QA teams: take your internal quality program to the next level.