According to legislation currently in force, the Government has specific duties to provide information to the Houses. They consist in the obligation to transmit acts and documents to the House and the obligation to communicate information. The European Commission also delivers consultation documents and its legislative proposals directly to national parliaments.
The legislative instruments and laws of the European Union are passed on to the appropriate Parliamentary Committee for consideration and to the Committee for EU Polices for its opinion. The relevant Committees may formulate observations and adopt policy-setting instruments for the Government.
With the coming into force of the Lisbon Treaty, parliaments can send reasoned opinions to European institutions concerning whether draft EU legislative instruments conform to the principle of subsidiarity (the so-called "early-warning" system).