On 29 April 2022 the 76th Session of the United Nations General Assembly held an event to commemorate the 40th anniversary of the adoption of the United Nations Convention on the Law of the Sea (UNCLOS), entitled, Informal meeting of the plenary to commemorate the fortieth anniversary of the adoption of the United Nations Convention on the Law of the Sea (programme). The event was convened followed a request from the delegations of Denmark, Grenada, Kenya, Portugal and Singapore.
On 30 April 1982, following a request for a recorded vote by the USA, the Third United Nations Conference on the Law of the Sea adopted UNCLOS by 130 votes (in favour) to 4 (against), with 17 abstentions (A/CONF.62/SR.182, paras. 26-28, subject to drafting changes and with 2 delegations not participating in the vote). UNCLOS was formally adopted and opened for signature on 10 December 1982 (A/CONF.62/122).