Such differences are, on the one hand, the result of different interpretations of the provisions and, on the other hand, related to the extent to which Member States had transposed certain ‘may' clauses - in the form of optional limitations or the possibility for more favourable rules - into national legislation.
Take razlike so na eni strani posledica različnih razlag določb, po drugi strani pa povezane s tem, v kolikšni meri so države članice v nacionalno zakonodajo prenesle nekatere neobvezne določbe („lahko“) v obliki neobveznih omejitev ali kot možnost za ugodnejša pravila.