Laws, Rules and Regulations - The National Board of Boiler and ...

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ObJeCtS SUbJeCt tO rUleS FOr COnStrUCtIOn anD StampInG
All boilers, lined hot water heaters and pressure vessels, except the following:
1. Boilers, lined hot water heaters and pressure vessels regulated by the US government.
2. Boilers, lined hot water heaters and pressure vessels located in private residences, or apartment complexes of not more
than six units.
3. Boilers, lined hot water heaters and pressure vessels operated on Indian reservations.
ObJeCtS SUbJeCt tO rUleS FOr FIelD InSpeCtIOn
Same as OBJECTS SUBJECT TO RULES FOR CONSTRUCTION AND STAMPING.
InSpeCtIOnS reQUIreD
1. Power and high temperature water boilers:
a. An annual internal certificate inspection and an external inspection while under operating conditions;
b. An internal inspection if the inspector determines from an external inspection that there is danger to public or
worker safety.
c. A triennial (36-month) internal inspection and annual external inspection when fully attended by quilified
attendants.
2. Direct fired jacketed steam kettles: inspection every two years.
3. Heating or process boilers, not exceeding 15 psi (steam or vapor):
a. A certificate inspection every two years;
b. An internal inspection where construction permits.
4. Hot-water heating boilers and lined hot-water heaters operating at pressures not exceeding 160 psi and temperatures
not exceeding 250°F: An initial certificate inspection with no further inspections required (may be an external
inspection).
5. Lined hot-water heaters are exempted when none of the following limitations are exceeded:
a. Heat input of 200,000 BTU per hour;
b. Water temperature of 210°F;
c. Nominal water-containing capacity of 120 gallons.
The Certificate of Inspection may be made 30 days prior to the certificate due date, but in all cases shall not be more than 30 days
after such date.
InSUranCe InSpeCtIOn reQUIrementS
1. Insurance companies are required to inspect to the Arizona Boiler Rules (Title 20, Chapter 5, Article 4); ASME Codes I, II,
IV, V, Vlll (Div, 1, 2, 3), lX, B31.1 and requirements of the National Board Inspection Code.
2. 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.
3. Reports of certificate inspections must be filed with the division on forms equivalent to the NB-6 form of the National
Board Inspection Code within 60 days after inspection.
4. Reports of external inspections other than certificate inspections are not required unless there are code violations or
unsafe conditions.
5. Written, canceled, not renewed or suspended because of unsafe conditions: All insurance companies shall notify the division,
on National Board forms, within 30 days of all boiler risks.
6. All insurance companies shall immediately notify the division of any unsafe boiler which they refuse to insure, and
submit a report of defects.
2013 National Board Synopsis of Boiler and Pressure Vessel Laws, Rules and Regulations