Central Coal And Oil Testing Laboratory is accreditated by National Accreditation Board for Testing and Calibration Laboratories (NABL), for performing Transformer oil sample tests based on Standards for Laboratory Accreditation ISO/IEC 17025 : 2005 “General requirements for the competence of testing and calibration laboratories”. NABL accreditation is a prestigious achievement in terms of providing reliable, accurate and timely testing facilitiesof transformer oil sample testing to fulfill customers’ requirements. Our laboratory is situated at O/o. Dy. Chief Engineer (TI&C), MSPGCL, Vidyut Bhavan, Katol Road, Nagpur and we have been actively involved in this field since 1990.