Calibration Laboratory Assessment Service

Learn about the NRC's Calibration Laboratory Assessment Service (CLAS) and the arrangements with the Canadian Association for Laboratory Accreditation (CALA) and the Standards Council of Canada (SCC) for the accreditation of calibration laboratories.


Get CLAS certified

CLAS certification requirements, application forms, fees, certification process

Directory of accredited CLAS-certified laboratories

Searchable directory of all CLAS-certified calibration laboratories in Canada

Recommended practices for calibration laboratories

Uncertainty budget template, calibration control charts, reference documents

About the Calibration Laboratory Assessment Service

Information about CLAS, benefits of certification, feedback