Requirements for CLAS Certification

CLAS is a voluntary program available to calibration laboratories seeking accreditation to ISO/IEC 17025. To be eligible for a CLAS certificate, a calibration laboratory must demonstrate that it is capable of doing specific calibrations and measurements with verified uncertainties and traceabilities to the national measurement standards maintained by NRC. It must also have in place the appropriate personnel, measurement standards and equipment, systems, procedures, and environment necessary to achieve the measurement uncertainties that it is claiming. Finally, it must successfully complete the CLAS assessment of compliance to the criteria and requirements of CAN-P-4D (ISO/IEC 17025), General Requirements for the Accreditation of Calibration and Testing Laboratories.

CLAS Implementation Policy for Transition to CAN-P-4E (ISO/IEC 17025:2005)