243.This section defines a "Welsh public authority" as any public authority listed in Parts II, III, IV or VI of Schedule 1, and whose functions are exercisable only or mainly in or as regards Wales, other than an excluded authority, or any public authority which is an Assembly subsidiary as defined by section 99(4) of the Government of Wales Act 1998. Subsections (2) and (3) provide that an "excluded authority" means one which has been designated for the purpose of this section by order of the Secretary of State, after consultation with the National Assembly for Wales.