6. (1) References, however expressed, in the Principal Act to the manager of a local authority or the manager of a planning authority are amended to chief executive of a local authority or chief executive of a planning authority, as the case may be, and for that purpose the provisions of that Act referred to in column (2) of Schedule 2 are amended in the manner referred to in column (3) of that Schedule opposite the reference in column (2) to the provision concerned.

(2) The reference in section 147(13) of the Principal Act to “assistant manager” is amended in the manner set out in Schedule 2.