This document serves as a source on clean room environmental test methods, and although some non-viableparticulate and endotoxin testing data are included, itsprimary focus is microbiological control. The conceptsfor sterile product manufacturing are the most stringentapplication, but these concepts can also be applied tonon-sterile product manufacture. The focus is environmental monitoring as it relates to facility control andcompliance. This document was compiled to aid in setting up a program that is meaningful, manageable, anddefendable.