The Legislation Act 2012 introduced two new terms for types of delegated legislation: legislative instruments, which includes most instruments made by the Governor-General, as well as some that are made by the House; and disallowable instruments, which includes any other instruments that make law. But that is only the start of it. There is significant overlap between these categories because the definition of disallowable instruments includes legislative instruments. Empowering Acts can also exclude legislative instruments from disallowance. So there are four categories: instruments that are disallowable and legislative; second, instruments that are not disallowable and are legislative; third, instruments that are disallowable and not legislative; and, fourth, instruments that are not disallowable and are not legislative.