V skladu s členom 16(1) Direktive 1999/105/ES se od držav članic zahteva, naj z uradnim nadzornim sistemom zagotovijo, da gozdni reprodukcijski material iz posameznih enot odobritve ali partij ostane jasno prepoznaven skozi celoten proces od nabiranja do dostave končnim uporabnikom.
In accordance with Article 16(1) of Directive 1999/105/EC, Member States are required to ensure, by an official control system, that forest reproductive material from individual units of approval or lots remains clearly identifiable through the entire process from collection to delivery to the end user.