2. States Parties shall provide protection to persons in distress on the Moon in their stations, installations, vehicles and other facilities. 1. Any State Party may ensure that the activities carried out by other States Parties in the field of research and use of the Moon are compatible with the provisions of this Convention. To this end, all space vehicles, equipment, facilities, stations and facilities on the Moon shall be open to other States Parties. Such States Parties shall announce in advance an appropriately planned visit in order to allow for appropriate consultations and to take the most appropriate measures to ensure security and avoid any disruption to the normal operation of the establishment to be visited.