1. The commissioner shall issue a certificate of inspection valid for the period specified in section 89.3 after the payment of a fee, the filing of an inspection report, and the correction or other appropriate resolution of any defects identified in the inspection report. The certificate shall be posted at a place near the location of the equipment.
 2. The owner or user of any equipment covered in this chapter, or persons in charge of such equipment, shall not allow or permit a greater pressure in any unit than is stated in the certificate of inspection issued by the commissioner.
 3. The commissioner shall indicate to the user whether or not the equipment may be used without making repair or replacement of defective parts, or whether or how the equipment may be used in a limited capacity before repairs or replacements are made, and the commissioner may permit the user a reasonable time to make such repairs or replacements.