On January 27, 2012, U.S. Customs and Border Protection (CBP) posted a notice on its website informing that the 2012 Harmonized Tariff Schedule of the United States (HTSUS) has been implemented. The World Customs Organization (WCO) amends the Harmonized System, at the six-digit level, every four to six years. The WCO HTSUS amendments went into effect on February 3, 2012.
CBP systems were updated to accept the new 2012 HTS with the WCO amendments. For entry summary transmission purposes, only the tariff numbers in effect on the date of transmission are valid.
Regarding the goods imported under a free trade agreement (FTA) or trade promotion agreement (TPA) whose tariff numbers have changed, the trade is advised that the 2011 tariff change rules (TCRs) govern the TCR analysis until revised TCRs corresponding to the applicable FTA or TPA are published.