9. Fire Authority's powers in areas of urban vegetation---In respect
 of any sufficiently described area of vegetation situate within the
 jurisdiction of the New Zealand Fire Service Commission, the powers of a
 Fire Authority under this Act may be exercised, notwithstanding any
 provisions otherwise in any other enactment,---
   (a) By any Fire Authority to the extent of any agreement or
         arrangement made between it and the Commission pursuant to
         section 14 (2) of this Act; or
   (b) By any local authority to the extent of any agreement or
         arrangement made by that local authority with the Minister [of
         Forestry] and that Commission and published or notified in the
         Gazette:

   Provided that the area shall not thereby cease to be subject to the
 jurisdiction of the Commission.

       In para. (b) the words ``of Forestry'' were inserted by s. 2 (1)
     (a) of the Forest and Rural Fires Amendment Act 1987.