The National Association for Proficiency Testing (NAPT) is the most trusted name in the metrology community for providing proficiency testing kits. As the only non-profit metrology provider, NAPT guarantees a complete independent evaluation of your enrollment, ensuring that integrity is upheld every single time without question. There will never be a conflict of interest.

When you are seeking a truly independent metrology proficiency testing provider for the administration and development of proficiency kits, software tools, and support for interlaboratory comparisons, look no further than NAPT.

Throughout the year, the National Association for Proficiency Testing (NAPT) organizes and conducts regional Interlaboratory Comparisons (ILCs) in collaboration with sponsoring laboratories. These regional ILCs provide laboratories the opportunity to participate in proficiency testing for disciplines that cannot be shipped from lab to lab.