On October 15, 2020, in Cargo Systems Messaging Service (CSMS) #44437979, U.S. Customs and Border Protection (CBP) issued guidance with procedures for making retroactive claims for duty refunds under the Caribbean Basin Trade Partnership Act (CBTPA).
The renewal of the CBTPA was signed on October 10, 2020, and it allows for retroactive duty refunds on eligible goods entered or withdrawn from warehouse for consumption during the lapse period from October 1, 2020 through October 14, 2020. A Post Summary Correction (PSC) can be filed to request a refund for these entries. For entries that have already liquidated, a protest can be filed.
Additional details can be found in the CSMS here: