Welsh Development Agency Act 1975 (c. 70) Welsh Development Agency Act 1975 (c. 70) Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below: Sch. 18 para. 1 repealed by Coal industry Act 1994 Sch. 11 Pt. 3 13Paragraph 13 Welsh Development Agency Act 1975 (c. 70)