ASHRAE Standard 188 Approved

ASHRAE advances the arts and sciences of heating, ventilation, air conditioning and refrigeration to serve humanity and promote a sustainable world.

Legionellosis Standard Provides Guidance On Risk Management Requirements

Atlanta – Long awaited industry guidance on Legionellosis is now available in a new standard from ASHRAE. The document establishes minimum Legionellosis risk management requirements for building water systems.

“The industry interest and input into developing this standard has been tremendous,” Presidential Member Tom Watson, chair of the committee that wrote the standard, said. “With 8,000 to 10,000 cases of Legionnaires’ Disease reported each year in the United States, and with more than 10 percent of those cases fatal, it is vital that we set requirements to manage risk of this bacteria.”

Legionella can also cause a less-severe influenza-like illness known as Pontiac Fever. Most cases of Legionellosis are the result of exposure to Legionella associated with building water systems, according to Watson.

ANSI/ASHRAE Standard 188-2015, Legionellosis: Risk Management for Building Water Systems, is intended for use by owners and managers of human-occupied buildings and those involved in the design, construction, installation, commissioning, operation, maintenance and service of centralized building water systems and components.

Publication of the standard coincides with ASHRAE’s 2015 Annual Conference taking place June 27-July 1, in Atlanta.

Specific requirements in the standard include:

  • Minimum Legionellosis risk management requirements for buildings and their associated potable and non-potable water systems.
  • Establishment by building owners of a Program Team and (in turn) a Water Management Program for which they are responsible in order to comply with the standard.
  • Provision of specific and detailed requirements for what Legionellosis control strategies must accomplish and how they are to be documented – but, does not provide (or place restrictions on) what specific strategies are to be used or applied.

Standard 188 consists of normative sections followed by normative and informative appendices. The normative sections and normative appendices specify the requirements to comply. The informative appendices and informative references are provided for guidance.

Click here to read the full release from ASHRAE.org

ASHRAE, founded in 1894, is a global society advancing human well-being through sustainable technology for the built environment. The Society and its more than 50,000 members worldwide focus on building systems, energy efficiency, indoor air quality, refrigeration and sustainability. Through research, standards writing, publishing, certification and continuing education, ASHRAE shapes tomorrow?s built environment today.


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