The benefit of performing proficiency testing is that it provides not only a means of routinely checking the performance of a laboratory, but also:
- DEMONSTRATES a commitment to improving quality and reducing uncertainty.
- SUPPORTS the accreditation/certification of laboratories against a quality standard.
- ASSISTS in evaluating methods and instrumentation performance.
- ADVANCES staff training.
- REDUCES the uncertainty surrounding the validity of test results
- INCREASES the release of safe and effective medicines into the global supply chain
USP Proficiency Testing Program External FAQs NEW
The Proficiency Testing Program aims to confirm the competency of an individual’s laboratory staff performance of conducting testing and analysis to ensure valid and reliable testing results and the overall proficiency of testing laboratories. USP in collaboration with NSI Lab Solutions, an ISO/IEC 17025, 17043 and ISO 17034 accredited organization has developed a dynamic set of schemes that evaluate a wide range of quality control analytical testing. The program provides an increased awareness of individual performance, supports accreditation requirements, strengthens quality management systems (QMS), builds confidence within multiple industries, and builds regulator assuredness during the registration and lifecycle of products.
USP collaborated with NSI to evaluate material with suitable characteristics for measurement specifications and created scientifically sound and robust protocols to determine assigned values and ensures sufficient quality.
This program offers participants an external unbiased quality assessment of proficiency that verifies the overall performance of the testing laboratory against other comparable testing laboratories. The Proficiency Testing Program leverages NSI’s broad experience to bring customers a diverse set of schemes.
Industries supported - Pharmaceutical - Microbiological - Supplemental


Why use USP Proficiency Testing Program?
The program’s objective is to confirm the competency of an individual’s
implementation and the overall proficiency of a laboratory’s routine testing.
(References: CFR, ISO, ICH7 CLIA, WHO)