On 14 February , 2023, the 56th Anniversary of the opening for signature of the Treaty for the Prohibition of Nuclear Weapons in Latin America and the Caribbean, also known as the Treaty of Tlatelolco, was commemorated with a civic ceremony in which the joint communiqué of the 33 OPANAL Member States was presented, held at the Plaza de las Tres Culturas, located in the historic neighborhood of Tlatelolco, which has great significance for OPANAL as it was the place where this important instrument was negotiated and submitted for consideration by the region.

The event, co-organized by the Cuauhtémoc Mayor's Office, the Government of Mexico in its capacity as Depositary State of the Treaty of Tlatelolco and the OPANAL Secretariat, was attended by Sandra Cuevas, Mayor of Cuauhtémoc, Ambassador Flavio Roberto Bonzanini, Secretary General of OPANAL, Dr. Eduardo Jaramillo Navarrete, Director General for the United Nations, Ministry of Foreign Affairs, H.E. Mr. Fernando E. Lins de S. Coimbra, Ambassador of Brazil and current President of the OPANAL Council, Alejandro Alday González, Director General of the Matías Romero Institute and Mr. Nereo Ordaz, Director General of the Soka Gakkai Mexico. Also present were the representatives of the States Parties to the Treaty and its Additional Protocols I and II, representatives of the Diplomatic Corps accredited in Mexico, international organizations and other authorities of the Cuauhtémoc Mayor's Office, as well as the scholarship recipients of the Matías Romero Institute.

As part of this commemoration, the historical photographic exhibition "The Treaty of Tlatelolco and its universalization in Latin America and the Caribbean" was installed with a selection of more than 20 photographs provided by the OPANAL Secretariat and the Historical Collection of the Mexican Foreign Ministry and the archive of the OPANAL Secretariat, and the exhibition "Everything you treasure - for a world free of nuclear weapons" by the Soka Gakkai and the International Campaign to Abolish Nuclear Weapons (ICAN).

Likewise, OPANAL Member States, through their Foreign Ministries and Representations abroad, joined this commemoration through virtual messages and wide dissemination in digital media and social networks.

Bolivia

• 14/Feb/23. Embajada del Estado Plurinacional de Bolivia en México. COMUNICADO de los Estados Miembros del Organismo para la Proscripción de las Armas Nucleares en la América Latina y el Caribe (OPANAL) en el 56º Aniversario del Tratado de Tlatelolco.

Cuba

• 14/Feb/23. Prensa Latina. Cuba mantiene compromiso con la paz en América Latina y el Caribe.
• 15/Feb/23. Venceremos: Diario digital de Guantánamo, Cuba. Cuba ratifica su compromiso con la paz en América Latina y el Caribe.

Guatemala

• 15/Feb/23. Agencia Guatemalteca de noticias. Enfatizan rol de Guatemala en favor de desnuclearización.

México

• 14/Feb/23. Alcadía Cuauhtémoc. LA ALCALDESA SANDRA CUEVAS ENCABEZA CEREMONIA EN TLATELOLCO DONDE 33 PAÍSES SE PRONUNCIARON POR MÁS ZONAS LIBRES DE ARMAS NUCLEARES.
• 15/Feb/23. Gobierno de México. “Se conmemoró el 56 aniversario del Tratado de Tlatelolco y la primera zona libre de armas nucleares en una región densamente poblada.”

Nicaragua

• 14/Feb/23. Ministerio de Defensa de la República de Nicaragua. Comunicado de los Estados Miembros del OPANAL en el 56 Aniversario del Tratado de Tlatelolco.
• 15/Feb/23. “Nicaragua participa en el 56 aniversario de la Firma del Tratado de Tlatelolco.”
• 15/Feb/23. tn8. “Nicaragua participa en 56 Aniversario del Tratado de Tlatelolco.”