1. The measures designed to amend non-essential elements of this Regulation, inter alia, by supplementing it, and which relate to modifications of Annexes I, II, IV and V, shall be adopted in accordance with the regulatory procedure with scrutiny referred to in Article 19(2).
2. The principle that the benefits of modifications must outweigh their costs, and the principle that additional costs and burdens remain within reasonable limits shall be taken into account.