USP Guidelines on Environmental Control including related Guideline - PharmaQMS
USP Guidelines on Environmental Control including related Guideline
March 8, 2026
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Guideline
Md Tareq Ajij
Operators & Contamination
"It is useful to assume that the operator is always contaminated while operating in the aseptic area. If the procedures are viewed from this perspective, those practices which are exposing the product to contamination are more easily identified." Hank Avallone – 1988
Operators & Contamination
"It is useful to assume that the operator is always contaminated while operating in the aseptic area. If the procedures are viewed from this perspective, those practices which are exposing the product to contamination are more easily identified." Hank Avallone – 1988
Aseptic Cleanroom - ~1970 practices
USP Activities
Microbiological Control
Presents an entirely new perspective on environmental control relying on incident rates rather than action / alert levels.
Reflects the uncertainty in microbial recovery especially in the cleanest environments.
Makes a clear distinction between environments for aseptic and other cleanroom applications (to be covered in a separate chapter). The new chapter may be patterned after .
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