Eradicates barriers that prevent the voluntary installation of sprinkler systems in private residences by promoting education regarding the effectiveness of residential fire sprinklers and by providing financial and regulatory incentives to homeowners, builders, and water purveyors for voluntarily installing the systems.

Exempts a person or purveyor that owns, operates, or maintains a public water system from liability for damages resulting from shutting off water to a residential home with an installed fire sprinkler system if the shut off is due to certain causes.

Prohibits a person installing a residential fire sprinkler system in a single-family home from being required to pay the fire operations portion of the impact fee under RCW 43.21C.060.