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).
WP.29/2025/122
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.
GRSP-77-05
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