Wash. Admin. Code § 388-78A-2990
The assisted living facility must:
(1) Equip each resident-occupied building with an approved heating system capable of maintaining a minimum temperature of 70°F. The assisted living facility must:
(b) Maintain the assisted living facility at a minimum of 68°F during waking hours, except in rooms:
(5) Equip each resident sleeping room with individual temperature controls located between eighteen and forty-eight inches above the floor capable of maintaining room temperature plus or minus 3°F from setting, within a range of minimum 60°F to maximum 85°F, these individual temperature controls may be modified to prevent resident access only when:
[Statutory Authority: Chapters 18.20 and 74.39A RCW. WSR 20-02-104, § 388-78A-2990, filed 12/31/19, effective 1/31/20. Statutory Authority: Chapter 18.20 RCW. WSR 13-13-063, § 388-78A-2990, filed 6/18/13, effective 7/19/13. Statutory Authority: RCW 18.20.090. WSR 06-01-047, § 388-78A-2990, filed 12/15/05, effective 1/15/06. Statutory Authority: RCW 18.20.090 (2004 c 142 § 19) and chapter 18.20 RCW. WSR 04-16-065, § 388-78A-2990, filed 7/30/04, effective 9/1/04.]