In late October 2014, Customs and Border Protection (CBP) issued a guidance message in which it laid down new rules regarding post-importation/post-entry claims for duty preference  and duty reduction programs – see http://www.cbp.gov/sites/default/files/documents/CSMS%20message_Post%20entry%20preference%20claims.pdf for the exact text. Specifically, CBP decided unless the program under which the duty free claim is being made specifically contains a