53. WP.29 welcomed the accession of Mongolia to the 1958 Agreement on 29 April 2026 and noted that the Agreement would enter into force for the country on 28 June 2026.

54. The secretariat informed the World Forum about the latest update of the status of the 1958 Agreement, based on ECE/TRANS/WP.29/343/Rev.34, available at https://unece.org/status-1958-agreement-and-annexed-regulations. WP.29 noted that contracting parties should notify the secretariat about any amendments needed to Add.1 to the status document via the online data base (/343app) only. WP.29 was also informed about the situation with the entry into force of the recent amendment proposals and new UN Regulations (WP.29-199-25-Rev.1).