The customs classification is one of the three pillars of the customs obligation. But it could play an interesting role in the enforcement of the European- and hopefully global- “green customs” Indeed, according to WCO (World Customs Organization – The fifth symposium in the WCO Symposia Series on “Visualising a greener HS to support environmentally sustainable trade”, supported by the European Union, was held on 23 January 2023) statements: sustainable goods to support a circular economy transition are increasing; the technology sector is a rapidly changing area, meaning that today’s environmentally preferable technology can quickly become obsolete and overtaken by newer and better technology; It is not possible to separately…