Every year the EU Commission issues thousands of rules based on powers delegated by the Council of Ministers and the European Parliament. But delegation is carefully controlled. Traditionally, control has been exerted through a system of committees of member state representatives ('comitology'). However, this system was contested by the European Parliament which was left without any influence. The Lisbon Treaty introduced a new control regime for delegated powers, the so-called delegated acts system, which was meant to supplement the existing system. The new system involves direct control by...