A tax rebate formula enacted by Congress in 1999, which favoured the export of rum to the United States for two-year periods at a time, expired on 31 December 2007.
31. 国会于1999年制订退税办法，主张以每两年为一期的方式向美国出口朗姆酒，这一退税办法于2007年12月31日到期。