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

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3. Portable boilers used for agricultural purposes only.
4. Boilers built for a pressure of 15 psig or less, for noncommercial use.
5. All potable water boilers and hot-water heaters, except the provisions of the section shall not be applicable to commercial
potable water heaters of less than 50-gallon capacity, installed in commercial buildings.
ObJeCtS SUbJeCt tO rUleS FOr FIelD InSpeCtIOn
Same as OBJECTS SUBJECT TO RULES FOR CONSTRUCTION AND STAMPING.
InSpeCtIOnS reQUIreD
Power boilers and high-pressure or high-temperature water boilers:
1. An annual external inspection followed by an internal inspection approximately six months after each external inspection.
The interval between inspections may be extended for a period not to exceed 24 months on a stationary boiler
provided:
a. Continuous water treatment under competent and experienced supervision has been in effect since the last internal
inspection for the purpose of controlling and limiting corrosion and deposits;
b. Conditions are such that in the judgment of the assistant secretary, the inspection period may be extended.
2. Internal inspections may be extended up to 60 months on boilers that are adjunct to or part of a continuous process.
Fee is $200.00.
Low-pressure boilers:
A certificate inspection will be conducted biennially:
1. Steam or vapor boilers: An external inspection and internal inspection biennially where construction permits;
2. Hot-water heating and hot-water supply boilers: An external certificate inspection biennially, and – where construction
permits — an internal inspection every six years based on date of construction;
3. Potable water boilers/hot-water heaters: An external certificate inspection biennially.
InSUranCe InSpeCtIOn reQUIrementS
1. Inspections made by inspectors employed by insurance companies and commissioned by the department are accepted
in lieu of inspections made by deputy boiler inspectors.
2. Reports of inspections must be submitted to the boiler inspection section within 30 days on National Board forms.
3. The department must be notified of suspension of insurance on account of dangerous conditions or of accidents to insured
boilers on National Board forms.
4. The department must be notified of new business or discontinuance of insurance.
CertIFICate OF InSpeCtIOn
1. Certificate of Inspection, valid for not more than 14 months, is issued by the state fire marshal upon payment of a fee of
$20.00. Certificate valid for not more than 26 months: $40.00.
2. All invoicing will be done by the boiler inspection section and mailed to the location.
3. No Inspection Certificate issued for an insured boiler shall be valid after the boiler for which it was issued ceases to be
insured by a duly authorized insurance company.
State FeeS
1. Potable water boilers/hot-water heaters .................................................................................................................................... $15.00
2. Heating boilers .................................................................................................................................................................................. $35.00
3. External power boilers:
a. 100 square feet or less heating surface ............................................................................................................................... $20.00
b. Over 100 square feet to 1,000 square feet heating surface ........................................................................................... $35.00
2013 National Board Synopsis of Boiler and Pressure Vessel Laws, Rules and Regulations