Glossary
Standard Operating Procedure (SOP)
A document setting out the approved method and sequence for performing a particular operation consistently.
Related sections
EU GMP Part I Chapter 4 21 CFR 211.180–211.194
Related terms
Real inspection findings
Findings from regulators' inspection documents in which this term appears.
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For example, SOP HOU-QC-018 effective April 7, 2025, provided to “serve as corrections to this observation” still specifies alert (b)(4) CFU and action (b)(4) CFU levels for viable surface samples within your ISO (b)(4)…
FDA · FDA Warning Letter · 2025-11-25 -
Regarding your firm’s deficiency in monitoring environmental conditions, your SOP CSP-080 Viable and Nonviable Air Sampling states viable air sampling “is conducted continuously during the compounding of CSPs in the ISO 5 environment by compounding personnel”.
FDA · FDA Warning Letter · 2026-05-12 -
Your firm manufactures over-the-counter (OTC) topical drug products, including hand sanitizers, Tincture Green Soap USP, and Isopropyl Alcohol 70% v/v.
FDA · FDA Warning Letter · 2025-07-22
