21 August 2025 ，The Bureau of Indian Standards (BIS) Registration Department has announced the implementation of the revised IS 16242 (Part 1):2025 / IEC 62040-1:2017, replacing IS 16242 (Part 1):2014 / IEC 62040-1:2008.

Standard Update and Implementation Schedule:

Old Standard: IS 16242 (Part 1): 2014 / IEC 62040-1: 2008;

New Standard: IS 16242 (Part 1): 2025 / IEC 62040-1: 2017;

Parallel Implementation Deadline: November 19, 2025, after which the old standard will be officially withdrawn.

Major Revisions in IS 16242 (Part 1):2025：

The updated standard introduces several technical enhancements, including:

• Use of IEC 62477-1:2012 as a reference document.

• New definition of movable UPS.

• Modified requirements on enclosure flammability, input current testing, capacitor discharge, and temperature rise.

• Additional test requirements covering creepage distances, force tests, handle securement, touch current, and hydrostatic pressure.

• Inclusion of new clauses for short-time withstand current, unsynchronized load transfer, loss of coolant, dry heat, and damp heat tests.

For Existing Licensees：

• Licensees must ensure compliance with IS 16242 (Part 1):2025 by 19 November 2025, failing which licences may be cancelled or restricted.

• Compliance requires submission of complete test reports from BIS-recognized laboratories for all lead models previously tested under the 2014 version.

• Licensees must also submit an undertaking confirming that revised requirements are implemented across all models covered under their licence.

For New Applicants：

• Applications already submitted with samples or test reports may continue under the old standard until the implementation deadline.

• Fresh applications may be processed under either the old or revised standard until 19 November 2025, subject to applicant declarations of compliance with the new version by the deadline.

• After the deadline, licences will be granted only in accordance with the revised standard.

For Scope Changes：

• Requests for changes in scope will follow provisions similar to new applications.

• Such requests under the old standard will only be accepted until the switchover date or the implementation deadline, whichever comes first.

Source: https://www.crsbis.in/BIS/app_srv/tdc/gl/docs/IS 16242_Part_1.pdf

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