(1) ORS § 480.510 to 480.670 do not apply to:

(a) Boilers and pressure vessels under federal safety regulations or control.

(b) Domestic water heaters designed for heating potable water, equipped with an approved pressure-relieving device, containing only water and that do not exceed a:

(A) Capacity of 120 gallons;

(B) Water temperature of 210 degrees Fahrenheit;

(C) Pressure of 150 pounds per square inch gauge pressure; or

(D) Heat input of 200,000 Btu per hour.

(c) Domestic water heaters designed to create hot water instantaneously on demand without the use of a storage tank.

(d) Pressure vessels containing liquefied petroleum gas that are under the jurisdiction of the State Fire Marshal. However, the construction and repair of the vessels must comply with ORS § 480.510 to 480.670 and are under the jurisdiction of the Board of Boiler Rules.

(e) Air tanks used in the operation of brakes on self-propelled vehicles and trailers that are used for transporting freight or passengers.

(f) Medical sterilizers that do not exceed one and one-half cubic feet in volume.

(g) Pressure vessels that do not exceed one and one-half cubic feet in volume and:

(A) Are not operated at gauge pressure of more than 150 pounds per square inch;

(B) Are equipped with a relief valve;

(C) Are approved under the American Society of Mechanical Engineers code adopted by the board;

(D) Are set at a maximum pressure of 150 pounds per square inch or less; and

(E) Are located in a place of public assembly.

(h) Pressure vessels that do not exceed five cubic feet in volume and:

(A) Are not operated at gauge pressure of more than 150 pounds per square inch;

(B) Are equipped with a relief valve;

(C) Are approved under the American Society of Mechanical Engineers code adopted by the board; and

(D) Are set at a maximum pressure of 150 pounds per square inch or less.

(2) Notwithstanding subsection (1) of this section, if the board, upon presentation of satisfactory evidence, determines that danger to health or safety is evident in any pressure vessel or class of pressure vessels exempted under subsection (1)(g) of this section, the board may require the inspection or reinspection of the pressure vessel or class of pressure vessels and make the pressure vessel or class of pressure vessels subject to the fee, construction or other requirements of ORS § 480.510 to 480.670.

(3) The following boilers and pressure vessels are exempt from ORS § 480.510 to 480.670, except as to all provisions relating to construction, installation, alteration or repair and to installation permits:

(a) Boilers that are not operated at gauge pressures of more than 15 pounds per square inch and that are located on farms and used solely for agricultural purposes except when used in connection with a greenhouse.

(b) Air tanks located on farms and used solely for agricultural purposes.

(c) Boilers and pressure vessels that are located in private residences and may be inspected only by a boiler inspector.

(d) Pressure vessels being operated at gauge pressures of less than 15 pounds per square inch and equipped with a pressure relief device set to open at a pressure that does not exceed the lesser of the pressure vessel’s maximum allowed working pressure or 15 pounds per square inch gauge pressure.

(4)(a) Beverage service tanks that have a product volume of five cubic feet or less are exempt from ORS § 480.510 to 480.670.

(b) Except as provided in paragraph (c) of this subsection, beverage service tanks that have a product volume of more than five cubic feet are exempt from ORS § 480.510 to 480.670, except as to provisions relating to installation permits and installation inspections. The installation permit fee for a beverage service tank is $50.

(c) All portable beverage tanks are exempt from ORS § 480.510 to 480.670.

(5) The Director of the Department of Consumer and Business Services may adopt rules identifying boilers and pressure vessels used in single family dwellings or other structures that may be inspected by an inspector certified under ORS § 455.715 to 455.740 for a specialty code other than the code adopted under ORS § 480.545. The boilers and pressure vessels identified in the rules shall be subject to inspection upon installation, alteration or repair, but be exempt from periodic inspection under ORS § 480.560 and from the operating permit requirements of ORS § 480.585.

(6) Notwithstanding any requirement of ORS § 480.510 to 480.670 or the state building code, the Department of Consumer and Business Services may adopt rules granting partial or complete exemption from ORS § 480.510 to 480.670 for a boiler or pressure vessel if the board determines that the boiler or pressure vessel does not present a danger to public health or safety within this state. [1961 c.485 § 11; 1967 c.447 § 1; 1969 c.582 § 4; 1973 c.830 § 2; 1983 c.676 § 5; 1985 c.398 § 1; 1987 c.847 § 1; 1991 c.518 § 6; 1999 c.713 § 1; 2007 c.386 § 1; 2007 c.487 § 5; 2009 c.696 § 13]