It has not been ratified by any state that engages in self-launched human spaceflight (i. e. , the united states, russia (or its predecessor the soviet union), or the people's republic of china). The united nations treaty collection provides access to a comprehensive database of international treaties and agreements registered with the un. Amendments shall enter into force for each state party to the agreement accepting the amendments upon their acceptance by a majority of the states parties to the agreement and.