Kadar nacionalni regulativni organ izračuna stroške, ki nastanejo pri uvedbi storitve, določene po tej direktivi, je primerno predvideti ustrezno donosnost vloženega kapitala, vključno z ustreznimi stroški dela in gradnje, pri čemer se naredi popravek vrednosti kapitala, kadar je to potrebno, da bi se odražala tekoče vrednotenje sredstev in učinkovitost operacij.
When a national regulatory authority calculates costs incurred in establishing a service mandated under this Directive, it is appropriate to allow a reasonable return on the capital employed including appropriate labour and building costs, with the value of capital adjusted where necessary to reflect the current valuation of assets and efficiency of operations.