[3] The Positive List of Commodities is a current list contained in the Comprehensive Export Schedule showing the commodities which require a validated license from the Bureau of Foreign Commerce of the Department of Commerce. Transit Controls A validated export license is required for the exportation from any seaport, land frontier, airport, or foreign trade zone in the United States of certain strategic goods in transit through the United States which originate in or are destined for a foreign country. The commodities so controlled are the ones which are identified on the United States Department of Commerce Positive List by an asterisk. Shipping Controls Department of Commerce Transportation Order T-1 denies any United States-registered vessel or aircraft authority to carry items listed on the Positive List, or arms, ammunition and implements of war or fissionable material, to any Soviet bloc destination, Hong Kong or Macao without a validated license issued by BFC or other appropriate licensing agencies or the express permission of the Under Secretary of Commerce for Transportation. This order includes shipments from foreign ports as well as from the United States. Department of Commerce Transportation Order T-2 has the effect of preventing the transportation of any commodities directly or indirectly to Communist China, North Korea, or areas under their control, by United States-registered vessels or aircraft. It also prohibits American ships and aircraft from calling at any port or place in Communist China. A validated license is required for delivery in United States ports of specified types of petroleum and petroleum products to foreign vessels, if the foreign carrier has called at any point under Far Eastern Communist control, or at Macao, since January 1, 1953, or will carry commodities of any origin from the United States destined directly or indirectly for any such point within a period of 120 days in the case of a vessel, or 30 days in the case of any aircraft. This regulation also requires that if a carrier is registered in or under charter to a Soviet-bloc country or is under charter to a national of a Soviet-bloc country it will be necessary to apply to BFC for a validated license. American petroleum companies at certain foreign ports are prohibited without a Treasury Department authorization from bunkering any vessel bound for a Communist Far East port or Macao or which is carrying goods destined for Communist China or North Korea. Similar restrictions apply to the bunkering by these companies of vessels returning from Communist Far East ports or Macao. Financial and Transaction Controls