In this Part –

associated vehicle , in relation to an electronic billboard, means a vehicle –

(a) to which the electronic billboard is affixed; or

(b) on which the electronic billboard is mounted; or

(c) of which the electronic billboard is an integral part;

condition , of an electronic billboard approval, means a condition imposed on the approval under section 79(4) ;

electronic billboard  – see section 77 ;

electronic billboard approval  – see section 78(2)(a)(iii) and section 79 ;

officer means a police officer or authorised officer;

road authority means –

(a) a body or person having statutory authority or responsibility for the design, construction, demolition, maintenance or management of any road; or

(b) a person that is designing, constructing, demolishing, maintaining or managing a road for a road authority of the kind referred to in paragraph (a) .