21 C.F.R. § 211.113 Control of microbiological contamination.
Title 21 - Food and Drugs
(a) Appropriate written procedures, designed to prevent objectionable microorganisms in drug products not required to be sterile, shall be established and followed. (b) Appropriate written procedures, designed to prevent microbiological contamination of drug products purporting to be sterile, shall be established and followed. Such procedures shall include validation of any sterilization process.
Title 21: Food and Drugs
PART 211—CURRENT GOOD MANUFACTURING PRACTICE FOR FINISHED PHARMACEUTICALS
Subpart F—Production and Process Controls
§ 211.113 Control of microbiological contamination.

