A proposal for acquiring ISO Certification was approved in the 6th Governing Body (GB) Meeting held on 29th June, 2010. Thereafter CBTC put up the proposal to the North Eastern Council (NEC) for funding on 5th August, 2010. The NEC approved the proposal and sanctioned Rs 2.55 Lakhs vide letter No. NEC/IND/GN/78/2008, dated 30th August, 2010. Consequently, work order was issued to Bureau Veritas, the certifying agency on 19th November2010. However the works related to ISO Certification did not make much headway and was shelved for a long time.
The certification process was revived in February, 2015. The Purvottar Consultant Guild Pvt. Ltd, Guwahati was engaged for providing consultancy services for establishment and implementation of Quality Management System towards certification by accreditation agency. After a series of audit and activities for controlling the management system, the certification to ISO 9001:2008 was issued to CBTC on 7th April, 2016. The Utilization Certificate has been submitted to NEC vide letter No. CBTC/162/UC/AD/ dated 4th May, 2016 for Rs 2.55 Lakhs utilized for the certification process.