(1) Units in multiple dwellings or rooming houses shall not be occupied unless a certificate of compliance has been issued by the enforcing agency. The certificates shall be issued only upon an inspection of the premises by the enforcing agency, except as provided in section 131. The certificate shall be issued within 15 days after written application therefor if the dwelling at the date of the application is entitled thereto.

    (2) A violation of this act shall not prevent the issuance of a certificate, but the enforcing agency shall not issue a certificate when the existing conditions constitute a hazard to the health or safety of those who may occupy the premises.

    (3) Inspections shall be made prior to first occupancy of multiple dwellings and rooming houses, if the construction or alteration is completed and first occupancy will occur after the effective date of this article. Where first occupancy will occur before the effective date of this article, inspection shall be made within 1 year after the effective date of this article. Upon a finding that there is no condition that would constitute a hazard to the health and safety of the occupants, and that the premises are otherwise fit for occupancy, the certificate shall be issued. If the finding is of a condition that would constitute a hazard to health or safety, no certificate shall be issued, and an order to comply with the act shall be issued immediately and served upon the owner in accordance with section 132. On reinspection and proof of compliance, the order shall be rescinded and a certificate issued.