Where aid is granted on the basis of additional costs or income foregone, Member States shall ensure that the relevant calculations are adequate, accurate and established in advance on the basis of a fair, equitable and verifiable calculation.
I gcás ina mbíonn cabhair deonaithe ar bhonn costas breise nó ioncaim ligthe thar ceal, áiritheoidh na Ballstáit go mbíonn na ríomhanna iomchuí leormhaith, cruinn agus bunaithe roimh ré ar bhonn ríofa atá cóir, cothrom agus infhíoraithe.