The product descriptions that appear alongside customs codes in a schedule are set in stone. The whole point of the Harmonised System (HS) is that at any given time, specifications are the same from one trading bloc to the next. When classifying carcases, for example, there is no adjustment to be made for organic product over intensively-raised. The existence of additional input costs is of no concern when filling in customs declarations. Every market has its own mechanisms for assigning values and prices, which are separate from fiscal liability.