When building water system Legionnaires' disease outbreaks occur no matter how long after construction or renovation, commonly those involved in design and construction are named parties should subsequent litigation occur. And when building water system Legionnaires' disease outbreaks occur within one year of construction or renovation almost always those involved in design and construction are primary named parties should subsequent litigation occur. This seminar covers simple and easy steps to validate that critical commissioning steps of aerosolizing water systems have been completed and are properly documented to insure compliance with ASHRAE 188 and industry best practices.