NABL stands for National Accreditation Board For Testing And Calibration Laboratories. NABL has agreements with ILAC (International Laboratory Accreditation Conference) and APLAC (Asia Pacific Laboratory Accreditation Cooperation). These are especially valuable for International recognition and mutual acceptance of test results. In short accreditation has worldwide acceptance.
NABL is an autonomous body under the aegis of Department of Science & Technology, Government of India, and is registered under the Societies Act. It is only one of its kinds that assess laboratories in India for quality and consistency in the results. The concept of Laboratory Accreditation was developed to provide a means for third-party certification of the competence of laboratories to perform specific type(s) of testing.