(1) A county council or a city council may make bye-laws specifying in respect of any specified public road or specified part of a public road or specified carriageway or lane of a public road other than a national managed road, part of a national managed road or carriageway or lane of a national managed road within its administrative area the speed limit which shall be the speed limit on that road or those roads for mechanically propelled vehicles.

(2) The special speed limits that may be specified in bye-laws under this section are -

(a)

(i) 20 kilometres per hour,

(ii) 30 kilometres per hour, and

(iii) 40 kilometres per hour,

in respect of a road or roads in accordance with guidelines issued by the Minister under section 10D,

(b) 50 kilometres per hour, in respect of any road other than a road in a built-up area,

(c) 60 kilometres per hour,

(d) 80 kilometres per hour, in respect of a motorway, a national road or a road in a built-up area,