Based on WP.29/2025/122 and GRSP-77-05 as adopted during the 197th WP.29 session (10-14
Nov 2025) and 77th GRSP session (5-9
May 2025).
Proposal to remove the prohibition on use the Unique Identifier per the WP.29 decision to change the default application of the UI from a requirement (requiring prohibition in cases where UI does not apply) to a permission (requiring an affirmative statement that UI may be used under a Regulation) and to allow the use of talcum for the dust resistance test as an alternative to dry quartz.
Proposal to remove the prohibition on use the Unique Identifier per the WP.29 decision to change the default application of the UI from a requirement (requiring prohibition in cases where UI does not apply) to a permission (requiring an affirmative statement that UI may be used under a Regulation).
Entry into force as of 4 Jun 2026