By 13 July 2021, Norway has ratified the Convention on the International Organization for Marine Aids to Navigation and Japan accepted the Convention.
On 9 March 2021, Singapore ratified the Convention on the International Organization for Marine Aids to Navigation. It is the first country to do so shortly after it signed the Convention on 1 March 2021.
On 21 April 2021, a diplomatic note was sent from the French government to 190 ambassadors around the world to invite them to sign the Convention on the International Organization for Marine Aids to Navigation.