66 No. 2 of 2016] Constitution of Zambia (Amendment) (d) ensure that services are provided to sub-structures in an equitable and sustainable manner; (e) promote social and economic development; (f ) promote a clean, safe and healthy environment; and (g) encourage the involvement of communities and community organisations in matters of local government. Local authorities 152. (1) A local authority shall— (a) administer the district; (b) oversee programmes and projects in the district; (c) make by-laws; and (d) perform other prescribed functions. (2)The national Government and the provincial administration shall not interfere with or compromise a local authority’s ability or right to perform its functions. (3) There shall be a council for each local authority. (4) There shall be a Town Clerk or Council Secretary for each local authority and other staff of the local authority, as prescribed. Election of councillors, composition of councils and tenure 153. (1) A councillor shall be elected in accordance with Article 47(3) by registered voters resident within the district. (2)A council shall consist of the following councillors— (a) persons elected in accordance with clause (1); (b) a mayor or council chairperson elected in accordance with Article 154; and (c) not more than three chiefs representing chiefs in the district, elected by the chiefs in the district. (3) The system of electing chiefs specified in clause (2) (b) shall be prescribed. (4)A person qualifies to be elected as a councillor, excluding councillors specified under clause (2) (b), if that person— (a) is not a Member of Parliament; (b) is not less than nineteen years of age; (c) has obtained, as a minimum academic qualification, a grade twelve certificate or its equivalent;