Audit Checklist for Verification of Certificate of Analysis (COA) of API 

 

Section Audit Point Compliance (Y/N) Remarks
General Information Does the COA contain the name and address of the API manufacturer?
Is the COA dated and signed by the authorized personnel of the manufacturer?
Does the COA include a unique identification number or reference?
Is the Certificate of Analysis issued on the manufacturer’s letterhead?
Product Information Is the API name clearly mentioned, including its generic or brand name (if applicable)?
Are the batch/lot number and manufacturing date clearly stated on the COA?
Is the expiry date or re-test date of the API mentioned?
Does the COA specify the packaging and storage conditions for the API?
Specifications and Results Are the specifications listed in the COA in compliance with the pharmacopeial or in-house standards?
Are the test results provided for all critical quality attributes (e.g., assay, impurities, residual solvents)?
Are the test methods referenced in the COA (e.g., USP, BP, EP, or validated in-house methods)?
Are the results within the specified acceptance limits?
Is the microbial test result (if applicable) mentioned and within the limit?
Analytical Methods Are the analytical methods validated and the validation data available for reference?
Does the COA mention the equipment or instruments used for critical tests (if applicable)?
Authenticity Verification Is the COA traceable to the batch it represents?
Are the COA details verified against the approved vendor documentation?
Has the COA been cross-checked with the purchase order or delivery documents for consistency?
Regulatory Compliance Is the API manufacturer listed as an approved vendor?
Does the COA comply with GMP regulatory requirements (e.g., 21 CFR Part 211, ICH Q7)?
Are any discrepancies in the COA immediately documented and resolved?

This checklist ensures thorough verification of the Certificate of Analysis for APIs, focusing on accuracy, authenticity, regulatory compliance, and adherence to GMP guidelines.

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