Oregon Revised Statutes Protection from Fire § 479.905

(1) “Class A limited energy technician” means a person licensed to install, alter and repair all limited energy systems.

(2) “Class B limited energy technician” means a person licensed to install, alter and repair all limited energy systems that do not include protective signaling, including but not limited to:

(3) “HVAC” means thermostat and associated control wiring of heating, ventilation, air conditioning and refrigeration systems. “HVAC” does not include boiler controls.

(4) “Limited energy electrical activity” means installation, alteration, maintenance, replacement or repair of electrical wiring and electrical products that do not exceed 100 volt-amperes in Class 2 and Class 3 installations, or that do not exceed 300 volt-amperes for landscape low voltage lighting systems that are cord connected to a ground fault circuit interrupter receptacle, under the electrical specialty code and the Low-Rise Residential Dwelling Code.

(5) “Protective signaling” includes fire alarm, nurse call, burglar alarm, security and voice evacuation systems and other systems that are part of a fire or life safety system.