A third round of public comments on guidance from ASHRAE, the American Society of Heating, Refrigerating, and Air-Conditioning Engineers, was expected to be completed in December. ASHRAE had called for comments on its publication Guideline 12-2000R, . Proposed revisions to the guideline included new descriptions of legionellosis and , potable water systems, ornamental water features, and cooling towers. Guideline 12 also provides guidance related to the implementation of ASHRAE Standard 188, , which was the first industry standard in the U.S. to address Legionnaire’s disease prevention. Standard 188 was recently revised to clarify compliance requirements and facilitate adoption of the standard for regulatory purposes. More information on Guideline 12 is available on ASHRAE’s .