Albania, Croatia, Côte d’Ivoire and San Marino joined the Artemis Accords, bringing total participation to 76 countries, NASA announced in a release published Sept. 28, 2026. Administrator Jared Isaacman described the growth as reflecting a commitment to peaceful, responsible exploration.

According to NASA, nearly 40% of the world's nations are now collaborating on the accords, and nearly two-thirds of countries that signed the 1967 Outer Space Treaty have also signed them. The agency said the framework, guided by a method of operations adopted in 2024, includes twice-yearly meetings and virtual sessions, and that participants have advanced recommendations on noninterference, interoperability, scientific data sharing and registration practices.

The release stated that a Principals' Meeting at the International Astronautical Congress in Antalya, Türkiye, was scheduled to begin Monday, Oct. 5, co-chaired by NASA Deputy Administrator Matt Anderson and Major General Roberto Melgar Sheen of Peru's space agency, CONIDA. It was to examine support for emerging space nations and dissemination of lunar debris-mitigation recommendations. NASA said more nations are expected to join in the months and years ahead.