The Treaty of Lisbon explicitly sets out the role of the national parliaments in the Protocol on the role of national Parliaments in the European Union and in the Protocol on the application of the principles of subsidiarity and proportionality.
Úloha národných parlamentov je explicitne zakotvená v Protokole o úlohe národných parlamentov v Európskej únii a v Protokole o uplatňovaní zásad subsidiarity a proporcionality.