(1) If a waste rectification notice may be given to an occupier of premises in relation to a matter, the same notice may also be given to another occupier of the premises in relation to the same matter if there are reasonable grounds for believing—
(a) that the other occupier has also engaged in the conduct that is the subject of the matter in the notice; or
(b) if the occupier or occupiers engaging in the conduct cannot be identified—each is an occupier at the premises where the conduct happened.
(2) If a proceeding is started against an occupier of premises for an offence against this part, a proceeding for the same offence may also be started against another occupier of the premises.