The National Accreditation Board for Testing and Calibration Laboratories (NABL) is an autonomous body under the guidance of the Dept. Of Science & Technology, Govt. of India whose purpose is to provide accreditation to testing and calibration of clinical laboratories in the country. It is the sole accreditation body authorized by the Govt. of India that provides a third-party assessment of quality and technical competence of labs. NABL also shares links with Asia Pacific Laboratory Accreditation Cooperation and International Laboratory Accreditation Cooperation. So, why does NABL accreditation matter to the numerous medical labs, testing centres and other healthcare providers in India? NABL accreditation is recognized and valid through all the major economies of the world, and by all regulators in India.