2007 ORS 480.634¹
Exemption of journeyman plumber for certain activities

(1) A person who has a valid journeyman plumber license does not have to obtain a license under ORS 480.630 (Licensing of boiler contractors and persons installing, altering or repairing boilers or pressure vessels) (2) to work as an employee of a business engaged in installing or replacing by nonwelded means a potable domestic water heater that:

(a) Is not used for space heating;

(b) Has a capacity that does not exceed 180 gallons;

(c) Has a water temperature that does not exceed 210 degrees Fahrenheit;

(d) Has a pressure that does not exceed 150 pounds per square inch gauge pressure; and

(e) Has a heat input that does not exceed 750,000 BTU per hour.

(2) Subsection (1) of this section does not allow construction, repair or alteration of the domestic potable water heater. [1991 c.518 §15; 2005 c.758 §38]

1 Legislative Counsel Committee, CHAPTER 480—Explosives; Flammable Materials; Pressure Vessels, https://­www.­oregonlegislature.­gov/­bills_laws/­ors/­480.­html (2007) (last ac­cessed Feb. 12, 2009).
2 OregonLaws.org contains the con­tents of Volume 21 of the ORS, inserted along­side the per­tin­ent statutes. See the preface to the ORS An­no­ta­tions for more information.
3 OregonLaws.org assembles these lists by analyzing references between Sections. Each listed item refers back to the current Section in its own text. The result reveals relationships in the code that may not have otherwise been apparent.