On the 1st of January 2012 the new HS Nomenclature 2012 edition will be in effect.
HS2012 includes 220 sets of accepted amendments, divided as follows:
98 relate to the agricultural sector
27 to the chemical sector
9 to the paper sector
14 to the textile sector
5 to the base metal sector
30 to the machinery sector
37 to a variety of other sectors
Certain code numbers have been added, deleted or renumbered as a result of the amendments.
Details under World Customs Organization http://www.wcoomd.org