(1) A person must not do work on a sanitary plumbing system or a sanitary drainage system unless the work is done in accordance with the plan approved by the certifier under section 8 (Issue of plan approvals) of the Act.
Maximum penalty: 10 penalty units.
(2) Subregulation (1) does not apply to work on a sanitary plumbing system or a sanitary drainage system for a single residential building.