This bill would require a large building, a building with a water device, or a building which primarily houses people older than 65 or a building that has multiple housing units and a centralized hot water system, to develop and implement a building water system or water device management program and plan to minimize the growth and transmission of Legionella bacteria in the building’s water system. This bill also lists requirements for system maintenance, inspection and testing, cleaning and disinfection, sample monitoring, recordkeeping, and reporting. The bill lays out an enforcement scheme, including DOHMH investigation and civil penalties. The bill additionally requires DOHMH to provide guidance and information sessions to building owners, and requires DOHMH to submit a report.