2-2-2-9 MEMORANDUM OF UNDERSTANDING BETWEEN THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION AND THE EUROPEAN SPACE RESEARCH ORGANISATION FOR A COOPERATIVE PROGRAMME CONCERNING DEVELOPMENT, PROCUREMENT AND USE OF A SPACE LABORATORY IN CONJUNCTION WITH THE SPACE SHUTTLE SYSTEM

Article XV: Duration

This Memorandum of Understanding shall remain in force until 1 January 1985, but at least for five years from the date of the first flight of the SL. This Memorandum shall be extended for three years unless either NASA or ESRO gives notice of termination prior to 1 January 1985, or prior to the expiration of the five years, whichever is applicable. Thereafter, the Memorandum of Understanding shall be extended for such further periods as the parties may agree.