English  |  Español  |  Français  |  Italiano  |  Pусский 

Forgot my password

How to access it ?

The online Harmonized System database is available through an individual or multi-user subscription.
To purchase the service, visit our online bookshop by clicking here.
Once your order completed on the WCO online bookshop, you will automatically receive your username and password, to access the database.
If you are a Member of the WCO, do not forget to use your login/password in order to benefit from preferential prices.

Site News



Your existing subscription(s) was migrated to where you will enjoy enriched content and new functionalities. When connecting to the new services, you will be asked to provide a new password.

This Harmonized System Database ( will be maintained until the 31st of July.


Note: Taking into account the current situation related to the COVID-19 pandemic, next HS Committee will take place on basis of virtual meetings with a reduce agenda and is scheduled in April 2021. Therefore, the updates for the Explanatory Notes (2017 edition) and for the Compendium of Classification Opinions (2017 edition) should be published in August 2021.

Official languages

English / French  (WCO)

Explanatory Notes : #7 of December 2019
Classification Opinions : #6 of December 2019

Non-Official Languages

Spanish  (COMALEP)

Explanatory Notes : #7 of December 2019
Classification Opinions : #6 of December 2019

Italian  (Italian Customs Agency)

Explanatory Notes : Edition 2012
Classification Opinions : -

Russian  (Russian Customs Administration)

Explanatory Notes : Edition 2012
Classification Opinions : Edition 2012

What can be found here ?

The Harmonized System database contains the HS Nomenclature (2007, 2012 and 2017 versions), the HS Explanatory Notes (4th edition - 2007, 5th edition - 2012 and 6th edition - 2017), the Classification Opinions, the Alphabetical Index, the Classification Decisions, the Amendments to the HS implemented as on 1st January 2017 and the correlation tables between the 2012 and 2017 HS versions.

You can do “multi-criteria” searches by keyword or HS codes, print your research, create personal notes and cross navigation between Explanatory Notes, Classification Opinions and Alphabetical Index.

The online database is updated twice a year following the Harmonized System Committee decisions.

Copyright © 2021 - WCO / OMD - Contacts