9In Schedule 1 to the Interpretation Act 1978 (words and expressions defined) for the definition of “Wales” substitute—
““Wales” means the combined area of the counties which were created by section 20 of the [1972 c. 70.] Local Government Act 1972, as originally enacted, but subject to any alteration made under section 73 of that Act (consequential alteration of boundary following alteration of watercourse).”