European laws or framework laws may lay down rules to prohibit discrimination on grounds of nationality as referred to in Article I-4(2).
Féadfar rialacha a leagan síos le dlíthe Eorpacha nó le dlíthe réime Eorpacha chun idirdhealú ar fhoras náisiúntachta a thoirmeasc dá dtagraítear in Airteagal I-4(2).