30.—(1) Subject to paragraph (2), a person who parks a heavy commercial vehicle (as defined in Article 31) wholly or partly—
(a)on the verge of a road, or
(b)on any land situated between two carriageways and which is not a footway, or
(c)on a footway,
is guilty of an offence.
(2) A person shall not be convicted of an offence under this Article in respect of a vehicle if he proves to the satisfaction of the court—
(a)that it was parked in accordance with permission given by a constable in uniform or a traffic warden;
(b)that it was parked in contravention of this Article for the purpose of saving life, extinguishing fire or meeting any other like emergency, or because of circumstances beyond the control of the person in charge of the vehicle; or
(c)that it was parked in contravention of this Article but the conditions specified in paragraph (3) were satisfied.
(3) The conditions mentioned in paragraph (2)(c) are—
(a)that the vehicle was parked on the verge of a road or on a footway for the purpose of loading or unloading; and
(b)that the loading or unloading of the vehicle could not have been satisfactorily performed if it had not been parked on the footway or verge; and
(c)that the vehicle was not left unattended at any time while it was so parked.
(4) In this Article—
“road”, without prejudice to any provision made under Article 20 of the Roads (Northern Ireland) Order 1993F1, does not include a “special road” within the meaning of that Order; and
“verge” means the unpaved area flanking a carriageway and forming part of the road