The Bureau of Indian Standards (BIS) has issued implementation guidelines for the revised IS 16242 (Part 1):2025 / IEC 62040-1:2017, which replaces IS 16242 (Part 1):2014 / IEC 62040-1:2008. The concurrent operation of both standards will continue only until 19 November 2025, after which the older version will be withdrawn.
All existing BIS licensees are required to ensure compliance with the revised standard before the deadline. They must submit complete test reports from BIS-recognized laboratories for lead models and provide an undertaking confirming conformity for all series models under their licence. Non-compliance beyond the deadline may lead to licence cancellation or model deletion.
For new applicants, processing under the old standard will be allowed only until the implementation date, with a declaration of commitment to adopt the revised version. After 19 November 2025, no licences will be granted under the old standard.
These revised guidelines aim to align India’s certification framework for UPS systems with international safety norms under IEC 62040-1:2017.