Verify smoke and CO alarms are operational, especially at turnover. Washington landlords must provide working smoke alarms and carbon monoxide alarms (with a CO alarm outside each sleeping area and on each level), and while tenants maintain them and replace batteries during a tenancy, the landlord must make sure the smoke alarms work before a new tenant moves in, so testing every alarm at each turnover and once a year meets that duty and catches a dead alarm before an emergency.
The Washington rule
Each rule shows its schedule, its primary sources, and the date it was last verified.
Related rules in Washington
The Washington guide lists every compliance obligation, the seasonal maintenance calendar, and baseline upkeep.
Open the Washington landlord guide · Smoke and carbon monoxide detector duties in every state
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This guide is the reading version of the Landautomate Washington rule base. In the app, the same rules become dated tasks on each Washington property, timed to its purchase date, lease dates, age, and climate, with an email before each one is due. The free preview shows a sample of that schedule for Washington in under a minute, no account needed.
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