Guidance for Efficacy Testing of Antimicrobial Products Against Planktonic Legionella pneumophila in Cooling Tower Water

This guidance provides EPA’s recommended test method for evaluating the efficacy of antimicrobial pesticide products against planktonic L. pneumophila in cooling tower water, as well as sample pesticidal label use directions and claims to aid registrants in drafting clear use directions and claims for proposed products.

• Final Guidance for Efficacy Testing of Antimicrobial Products Against Planktonic Legionella pneumophila in Cooling Tower Water (pdf)
• Method for Testing Antimicrobial Products against Legionella pneumophila in Simulated Cooling Tower Water (LSCTW) (pdf)