(1) This condition applies if an original utility structure in a road reserve is replaced by a replacement utility structure. The replacement utility structure must not have a diameter that is more than the original utility structure's diameter at its largest point plus 50%.
(2) This condition applies if the addition of an antenna makes a structure into a replacement utility structure in a road reserve. The height of the replacement utility structure must be no more than the original utility structure's highest point plus the lesser of 3 m or 30%.
(3) This condition applies if an antenna on a replacement utility structure in a road reserve is replaced. The combined height of the replacement utility structure and the replacement antenna must be no more than the combined height of the replacement utility structure and the original antenna.
(4) This condition applies if an antenna is added or replaced under subclause (2) or (3). The antenna—excluding the mount, if there is one, and the shroud, if there is one, and ancillary equipment, if there is any—must fit within the dimensions of a cylindrical shape that, when measured along the centre line of the original utility structure or the replacement utility structure, is no more than 2 m high and no more than 0.5 m in diameter.
(5) This condition applies if a dish antenna either is added to an original utility structure in a road reserve or a replacement utility structure in a road reserve or replaces an antenna on an original utility structure in a road reserve or a replacement utility structure in a road reserve. The dish antenna must have a diameter of no more than 380 mm, must not protrude from the structure's centre line by more than 0.6 m, and must be one of only 2 on the structure.