OAR 918-225-0360. Exemptions for Certain Pressure Vessels

Pressure vessels for cold water storage, water filter, water softener, or hydro-pneumatic service, and equipped with an ASME-approved pressure/temperature relieving device set at a maximum pressure of 300 psig and a maximum temperature of 210°F., except those pressure vessels connected to an outside air supply, are exempt from the Boiler and Pressure Vessel Law under ORS 480.525(1).