PDFWAC 110-145-1680
What requirements must be followed for carbon monoxide detectors?
(1) Carbon monoxide alarms must be provided with single station carbon monoxide alarms installed:
(a) In or near each separate sleeping area in the immediate vicinity of the bedrooms; and
(b) On each level of the dwelling.
(2) Carbon monoxide alarms shall be listed as complying with UL 2034 and be installed and maintained in accordance with NFPA 720 and the manufacturer's instructions.
[WSR 18-14-078, recodified as § 110-145-1680, filed 6/29/18, effective 7/1/18. Statutory Authority: Chapters 13.34 and 74.13 RCW, RCW 74.15.030(2), 74.15.311(2), 74.13.032, 13.04.011, 74.13.020, 13.34.030, 74.13.031, 13.34.145, 74.15.311, 74.15.030, and 2013 c 105. WSR 15-01-069, § 388-145-1680, filed 12/11/14, effective 1/11/15.]