When the UK Parliament wishes to legislate on a subject matter which has already been devolved to the National Assembly for Wales, convention requires it to receive the consent of the Assembly before it may pass the legislation in question. Such consent is given by the Assembly through Legislative Consent Motions (LCMs).
Standing Order 29 sets out guidelines on how the Assembly deals with LCMs (PDF, 1.92MB).
The following UK Bills have had the matter of Legislative Consent considered by the National Assembly for Wales during the Fifth Assembly. Full details of that consideration including the timetable for Scrutiny from Business Committee and the outcome of any scrutiny by Plenary or Committees can be found on the page that follows for each individual UK Bill.
The Research Service also has a monitoring service which follows the progress of UK Bills requiring legislative consent.