As every year, the amendments have been made in the Combined Nomenclature 2012 (so-called CN 2012). They result mainly from the change of the Harmonized System Nomenclature from 1^st January 2012 (so-called HS 2012) which is the basis for the Combined Nomenclature (CN). The changes introduced into the CN 2012 one can trace in the materials presented below.

http://www.wcoomd.org/home_hsnomenclature_2012.htm