Commercial Boilers

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Boiler & Pressure Vessel Safety

The Iowa Division of Labor regulates boilers and unfired steam pressure vessels according to Iowa Code Chapter 89. Some water heating boilers used for pools or spas are regulated by the Iowa Department of Public Health.

Accidents / Emergencies

Immediately notify the Labor Commissioner of an accident involving a boiler, pressure vessel or related equipment. Follow the accident notification requirements and submit an accident report form to the Iowa Division of Labor.

Is My Boiler Or Pressure Vessel Covered By Iowa Law?

Coverage depends on location, pressure, size, and type of the equipment. Pressure vessel coverage is limited to unfired steam pressure vessels. Effective July 1, 2018, some water heaters will no longer be covered by these requirements. A water heater with capacity less than or equal to 120 gallons, burner input less than or equal to 200,000 Btu’s, and maximum allowable working pressure less than 160 psi will become exempt July 1, 2018. Read about coverage of the Boiler and Pressure Vessels Laws.

Common Requests

Boiler & Pressure Vessel Board

The Boiler and Pressure Vessel Board has authority to write rules, review inspection reports, grant waivers from rules, and more.

Common Questions

Q: What is the permitting process for installing a boiler or pressure vessel?
A: An “Advance Notice of Boiler Installation” is required to be filled out and sent to us a minimum of 10 days prior to the installation being performed.

Q: How do I know what the Iowa Code and Administrative rules require?
A: The current Iowa Code (Chapter 89) and Administrative Rules (Chapters 90-96) are available online.

Hours of Operation

8:00am to 4:30pm • Monday - Friday

Contact Information

Division of Labor
Boilers & Pressure Vessel Safety
150 Des Moines Street
Des Moines, IA 50309-1836