National Accreditation Board for Testing and Calibration Laboratories (NABL) is an autonomous body under the aegis of Department of Science & Technology, Government of India, and is registered under the Societies Act. NABL has been established with the objective to provide Government, Industry Associations and Industry in general with a scheme for third-party assessment of the quality and technical competence of testing and calibration laboratories. Government of India has authorized NABL as the sole accreditation body for Testing and Calibration laboratories. In order to achieve this objective, NABL provides laboratory accreditation services to laboratories that are performing tests / calibrations in accordance with NABL criteria, which is based on internationally accepted standards and guidelines,ISO/IEC 17025. NABL has established its Accreditation System in accordance with ISO/IEC Guide 58, which is followed internationally

The laboratory is also recognized by Ministry of Environment and Forests under the Environment Protection Act. Under Section 12 and 13 of the Environment (Protection) Act, 1986 the Ministry recognizes environmental laboratories and Government Analysts working in the laboratories, to carry out functions entrusted to them under the Act. The notification to this effect has also been made in the Gazette of India. All recognized laboratories have to participate in the annual Analytical Quality Control (AQC) exercise being conducted by CPCB. Dummy Samples are sent to recognized laboratories and the results given are compared with the standard results of the same and variations, if any, is reported to the laboratory for implementation.

The laboratory is recognized by various state pollution control boards to carry out environment testing.