In 1956, eight standing commissions were set up to help Comecon make recommendations pertaining to specific economic sectors. The commissions have been rearranged and renamed a number of times since the establishment of the first eight. In 1986 there were twenty-four standing commissions, each headquartered in the capital of a member country and headed by one of that country's leading authorities in the field addressed by the commission. The Secretariat supervised the actual operations of the commissions. The standing commissions had authority only to make recommendations, which had then to be approved by the Executive Committee, presented to the Session, and ratified by the interested member countries. Commissions usually met twice a year in Moscow.