The World Customs Organization (WCO) released on October 28, its 2017 version of the Harmonized System tariff nomenclature.  This new nomenclature replaces the 2012 version, and includes 242 changes at the six-digit level.  Detail from the WCO is available at: http://www.wcoomd.org/en/media/newsroom/2016/october/the-2017-edition-of-the-hs-nomenclature-is-coming.aspx