http://www.legislation.gov.uk/anaw/2015/6/section/4Local Government (Wales) Act 2015An Act of the National Assembly for Wales to make provision for and in connection with a reduction in the number of principal local authorities in Wales and to make other amendments of local government law as it applies in relation to Wales.texttext/xmlenStatute Law Database2023-01-30Expert Participation2021-01-21Voluntary mergers of local authoritiesF14Consultation before making merger application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .