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

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ObJeCtS SUbJeCt tO rUleS FOr COnStrUCtIOn anD StampInG
All boilers, pressure vessels, and steam and refrigeration plants, except the following:
1. Boilers or pressure vessels subject to inspection under the Canada Shipping Act.
2. Boilers or pressure vessels subject to inspection by the Board of Transport Commissioners for Canada.
3. Boilers with a capacity of 60 kW or less (other than miniature boiler).
4. Boilers connected to a hot-water heating system where water is heated and circulated with no intervening valves between
boiler and expansion tank (fully vented to the atmosphere).
5. Pressure system used solely for heating purposes in a private dwelling.
6. Pressure vessels other than for steam, operated with the relief valve set at 103 kilopascals or less.
7. Pressure vessels with internal diameters of 24 inches (610 mm) or less and containing both liquid and air used exclusively
for hydraulic purposes at atmospheric temperatures (or used to serve as a cushion in a water pumping or heating system).
8. Pressure vessels having an internal diameter of 24 inches (610 mm) or less used for storage of hot water for domestic
purposes.
9. Pressure vessels used for storage of water or oil when temperature of water or oil is less than 66°C.
10. A refrigerating system that has motive rating of 10.5 kW or less.
ObJeCtS SUbJeCt tO rUleS FOr FIelD InSpeCtIOn
Same as OBJECTS SUBJECT TO RULES FOR CONSTRUCTION AND STAMPING.
InSpeCtIOnS reQUIreD
1. Steam and high temperature hot water boilers: initial and annual internal and external inspection.
2. Hot-water boilers: initial and inspection, biennial internal and external inspection.
3. Hot-water tanks: initial inspection, internal inspection at first 24-month interval and every 48 months thereafter. External
inspection every 24 months.
4. Indirectly heated hot-water tanks: initial inspection, internal inspection at first 36-month interval and every 72 months
thereafter. External inspection every 36 months.
5. Pressure vessels: initial and biennial internal and external inspection.
6. Air receivers less than 36 inches in diameter: triennial internal and external inspection.
7. Group A1 refrigeration pressure vessels and LPG and other non-corrosive storage vessels initial and external inspection
every 48 months.
InSUranCe InSpeCtIOn reQUIrementS
Inspections made by inspectors employed by insurance companies are not accepted in lieu of inspections made by a department inspector.
CertIFICate OF InSpeCtIOn
Certificate of Inspection is valid for period issued, unless canceled, withdrawn, or suspended by the chief inspector for just cause.
prOVInCIal FeeS
Fees for inspection of construction, extensive repairs, secondhand boilers, and pressure vessels when sold or exchanged for
subsequent use, and annual operating fees are fixed by the department based on the total output in kilowatts or on the size of
unfired pressure vessels, and on the capacity of new steam plants, refrigerating plants, and piping installations.
2013 National Board Synopsis of Boiler and Pressure Vessel Laws, Rules and Regulations