With the ratification of Nigeria, the 22nd state required for Montreal Protocol to come into force, the Protocol came into force on 1 January 2020.
The Protocol amends the Convention on Offences and Certain Other Acts Committed on Board Aircraft, Tokyo Convention of 1963. The Protocol is applicable between the following states that have ratified it: Bahrain, Congo, Cote d’Ivoire, Dominican Republic, Egypt, Gabon, Ghana, Guyana, Jordan, Kazakhstan, Kuwait, Malaysia, Malta, Mozambique, Nigeria, Paraguay, Portugal, Senegal, Singapore, Turkey, Uganda, and Uruguay.
For more information regarding the status pf the Protocol, please visit the following link: https://www.icao.int/secretariat/legal/List%20of%20Parties/Montreal_Prot_2014_EN.pdf