WCO Trade Tools
The Nomenclature, Legal Notes, Explanatory Notes & Classification Opinions for the HS 2017, HS 2012, HS 2007 & HS 2002 can be access on WCO Trade Tools.
An online version of the Harmonized Database (will be replaced by WCO Trade Tools in July 2021) can be access on harmonizedsystem.wcoomdpublications.org.