A Form 483 lists what an FDA investigator observed during an inspection. A warning letter is more serious. Either way, the work has three parts: a structured response, a corrective action plan, and remediation execution.
The response comes first because the clock is already running. What FDA needs to see is a response that is specific, owned by named people, and dated. The speed and credibility of that response shape what happens next.
The corrective action plan is where most responses succeed or fail. Each observation gets a root cause, a correction, and a way to show FDA the fix held. We do not promise work you cannot finish.
Then we stay and run the remediation through to closure.
Our team has completed more than 300 audits against FDA, ISO, MDSAP, and other global regulations, so we know how an investigator reads a response.
When to call us
- “We just got a 483.”