JAMAICA AUTHORIZED TO BUY PL 480 WHEAT - USDA Jamaica has been authorized to purchase about 56,000 tonnes of U.S. wheat under an existing PL 480 agreement, the U.S. Agriculture Department said. It may buy the wheat, valued at 7.0 mln dlrs, between March 25 and August 341 and ship it from U.S. ports and/or Canadian transshipment points by September 30, 1987.