Concerning water recreation facilities.

SB 5597 clarifies definitions and regulations for water recreation facilities in Washington State, directly affecting pool operators, water parks, and residential community managers. It defines key terms like "water recreation facility" (including pools, slides, wave pools, and natural swimming areas with artificial boundaries) and specifies that most require state permits for construction or modifications. The bill requires the state Board of Health to adopt safety and sanitation rules covering water quality, injury reporting, and facility design, while exempting small residential facilities (e.g., single-family rentals or communities under 15 units) from preconstruction reviews and routine inspections. It also establishes fee structures for local and state enforcement, prohibiting duplicate fees for the same services. The law aims to standardize health and safety oversight for public water recreation spaces.