ANSI/ASHRAE Standard 188-2018, Legionellosis: Risk Management for Building Water Systems establishes minimum legionellosis risk management requirements for building water systems.

The standard provides minimum legionellosis risk management requirements for the design, construction, commissioning, operation, maintenance, repair, replacement, and expansion of new and existing buildings and their associated (potable and non-potable) water systems and components. This standard applies to human-occupied commercial, institutional, multiunit residential, and industrial buildings. The standard does not include single-family residential buildings.

Only where specifically noted in this standard shall certain building water systems or parts of building water systems be exempt. It is intended for use by owners and managers of human-occupied buildings, excluding single-family residential buildings.

This standard is also intended for those involved in the design, construction, installation, commissioning, operation, maintenance, and service of centralized building water systems and components.

See how to meet this standard with Varuna: ASHRAE_188-2018-compliance