ORS 447.065: Solar heating and cooling systems.

(1) Notwithstanding ORS 447.020, a person may not engage in the trade of installing solar heating and cooling systems unless the person possesses either a license as a journeyman plumber issued under ORS chapter 693 or a solar heating and cooling system installer license issued by the State Plumbing Board under ORS 693.111.

      (2) A license issued under ORS 693.111 does not authorize a person to connect a solar heating and cooling system to a potable water source. The connection of a solar heating and cooling system to a potable water source must be made only by a journeyman plumber licensed under ORS chapter 693.