81. In the absence of the Secretary of the Working Party on Road Traffic Safety (WP.1), the WP.29 secretariat reported on the adoption of amendments to the 1968 Vienna Convention during its recent session, held on 24-26 March 2014. He added that WP.1 had adopted an amendment to remove inconsistencies between the Vienna Convention and the agreements administered by WP.29. He clarified that this amendment would likely enter into force in September 2015. WP.1 also discussed the amendment to align the provisions on lighting and light-signalling with those of the 1958 Agreement. These amendments might be adopted at the March 2015 session of WP.1. He added that, in this respect, a Contracting Party should volunteer to notify this amendment to OLA.