The Senedd is able to pass Acts on any matters that are not reserved to the UK Parliament by the Government of Wales Act 2006 (as amended by the Wales Act 2017).

When the UK Parliament wishes to legislate on a subject matter which has been devolved to the Senedd, convention requires that it does not normally do so without the consent of the Senedd. Such consent is given by the Senedd through Legislative Consent Motions. Consideration of Legislative Consent Motions by the Senedd is informed by scrutiny of Legislative Consent Memoranda.

Reports on legislative consent memoranda by the Legislation, Justice and Constitution Committee can be found under ‘Published Reports’ below.

In Wales, the Welsh Ministers make subordinate legislation using powers given to them in enabling acts such as Senedd Acts, Assembly Measures and Acts of the UK Parliament. Subordinate legislation is also often referred to as delegated legislation, because the power to make subordinate legislation is delegated by the enabling act. Subordinate legislation is also referred to as secondary legislation.