WAC 51-52-0515
WAC 51-52-0515. Section 515 — Waste or linen chute venting
515.1 General. Waste or linen chutes shall be gravity vented in accordance with NFPA 82.
EXCEPTION:
Waste or linen chutes may be mechanically ventilated by an exhaust fan in accordance with Section 713.13.7 of the International Building Code .