1. Each company employing special inspectors, except a company operating pressure vessels covered by owner or user inspection service meeting the requirements of subsection 1 of section 650.245, shall, within thirty days following each certificate inspection made by the inspectors, file a report of the inspection with the chief inspector upon appropriate forms as promulgated by the National Board of Boiler and Pressure Vessel Inspectors. The filing of reports of external inspections shall not be required except when the inspections disclose that the boiler or pressure vessel is in a dangerous condition. If the report filed pursuant to this subsection indicates that the boiler or pressure vessel is found to comply with the applicable rules and regulations, the owner or user shall pay a fee in accordance with the fee schedule adopted pursuant to the provisions of subsection 1 of section 650.275, and an inspection certificate shall be issued indicating the date of the inspection and the maximum pressure under which the boiler or pressure vessel may be operated.

2. Each company operating pressure vessels covered by owner or user inspection service meeting the requirements of subsection 1 of section 650.245 shall maintain in its files an inspection record which shall list, by number and such abbreviated description as may be necessary for identification, each pressure vessel covered by sections 650.200 to 650.290, the date of the last inspection of each such unit, and for each pressure vessel the approximate date for the next inspection thereof arrived at by applying the appropriate rules therefor to all data available at the time the inspection record is compiled. The inspection record shall be readily available for examination by the chief inspector or his authorized representative during business hours. Each such company shall, in addition, file annually with the chief inspector a statement, signed by the engineer having supervision over the inspections made during the period covered thereby, stating the number of vessels covered by sections 650.200 to 650.290 inspected during the year and certifying that each inspection was conducted pursuant to the inspection standards provided for by sections 650.200 to 650.290. The annual statement shall be accompanied by a filing fee in accordance with the fee schedule adopted pursuant to the provisions of subsection 1 of section 650.275.

3. No inspection certificate issued for an insured boiler or pressure vessel based upon a report of a special inspector shall be valid after the boiler or pressure vessel for which it was issued shall cease to be insured by a company duly authorized by this state to provide the insurance.

4. The director or his authorized representative may at any time suspend an inspection certificate when, in his opinion, the boiler or pressure vessel for which it was issued cannot be operated without menace to the public safety, or when the boiler or pressure vessel is found not to comply with the rules and regulations formulated by the board. Each suspension of an inspection certificate shall continue in effect until the boiler or pressure vessel has been made to conform to the rules and regulations of the board, and until the inspection certificate has been reinstated.