Arizona Division of Occupational Safety and Health (ADOSH)
Boiler Safety Section

• GO TO:   http://www.azleg.state.az.us/ArizonaRevisedStatutes.asp?Title=23

• CLICK:   ADOSH Boiler Rules (2009)

• GO TO:   http://www.nationalboard.org

• Request for Certificate Inspection of Installation . . . of Boiler or Fired Pressure Vessel
• Request for Inspection of a Nonweld Alteration or Repair of Boiler or Fired Pressure Vessel

• Recommend standards, regulations, and amendments to the Arizona Boiler Rules found in the Administrative Code Title 20 Chapter 5 Article 4.

• Enforce the Arizona Boiler Rules and the Arizona Boiler Act – ARS Title 23 Chapter 2 Article 11 enacted in 1977.

• Inspect boiler objects pursuant to the Arizona Boiler Rules and Arizona Boiler Act.

The Boiler Safety Section inspects boiler objects according to the following general criteria. Please review the Arizona Boiler Rules for a complete list of the requirements.

• All boilers and lined hot-water heaters operated in Arizona, except the following:
  
  • Boilers and lined hot-water storage heaters regulated by the U.S. government.
  • Boilers and lined hot-water storage heaters located in private residences or apartment complexes of not more than six units.
  • Boilers and lined hot-water storage heaters operated on Indian reservations.

• Power boilers (over 15psi steam or vapor pressure):
  • An annual internal certificate inspection and an external inspection while under operating conditions (approximately six months apart).

• Direct-fired steam-jacketed kettles:
  • A certificate inspection every two years.

• Heating or process boilers, not exceeding 15 psi (steam or vapor):
  • A certificate inspection every two years.

• Hot-water boilers operating at pressures not exceeding 160 psi or a temperature not exceeding 250°F:
  • An initial certificate inspection (may be external) with no further inspections required.

• Lined hot-water storage heaters are exempted when none of the following limitations are exceeded:
  • Heat input of 200,000 BTU per hour.
  • Water temperature of 210°F.
  • Nominal water-containing capacity of 120 gallons.

• Weld repairs, alterations, and/or major component replacement.

All inspected boiler objects are issued individual identification numbers starting with the letters "AZ". Inspection Certificates are issued to individual boiler objects upon compliance with the Arizona Boiler Rules.

Inspections made by inspectors employed by insurance companies and issued a special inspection certificate by the chief boiler inspector are accepted in lieu of inspections made by a state inspector.

• An owner, user, or operator shall immediately notify the Division of an explosion, severe overheating, or personal injury involving a boiler or lined hot water storage heater (R20-5-410).

• Repairs shall comply with the requirements of the National Board Inspection Code (R20-5-406-B).

• A qualified attendant is required for operation of power boilers (R20-5-417-D).