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What really happens to your business during an FDA inspection?
An FDA inspection usually runs a few days, occupies your most knowledgeable staff, and ends with a closeout meeting. If the investigator found problems you receive a Form 483, a written list of observations. Your response to that document — not the inspection itself — largely determines whether this becomes a warning letter.
How does an inspection start?
In most cases, without notice. An FDA investigator arrives at the facility, presents credentials and a Notice of Inspection, and explains the scope. From that moment everything said and produced is part of the record.
The people at the front desk matter more than most owners expect. If nobody knows who to call, the first hour of the inspection is spent looking disorganized.
What will the investigator actually ask for?
Expect requests for batch and production records, complaint files, supplier qualification and incoming-material records, labels and labeling, written procedures, training records, and evidence that your procedures are actually followed.
For a private-label brand, the question underneath all of it is usually the same: can you show that you are exercising oversight, or are you relying on your contract manufacturer and hoping?
What is a Form 483?
A Form 483 is the written list of observations an investigator issues at the closeout meeting when something appears out of compliance. It is not a final agency determination and it is not a penalty.
It is, however, the document that everything downstream is built on — including a warning letter, if one follows.
What happens after the inspection ends?
You generally have a short window to respond in writing if you want that response considered before FDA takes further action. A good response acknowledges the observation, states the correction, gives dates, and includes evidence.
A defensive or vague response is the single most common reason an ordinary 483 escalates.
What should be in place before an inspector arrives?
A named inspection lead and a named backup. A short written procedure for the first hour. A document set that can be produced quickly. And a standing relationship with regulatory counsel, so the call on day one is a short one.
Frequently Asked Questions
Does FDA give notice before an inspection?
For most domestic FDA-regulated facilities, no — inspections are typically unannounced. Certain foreign and pre-approval inspections are scheduled in advance.
Can I refuse to hand over a document?
Refusal has consequences and can itself become an observation. The better approach is knowing in advance what you are and are not required to produce — a conversation to have with counsel before the visit, not during it.
How long do I have to respond to a Form 483?
FDA generally expects a written response within 15 working days if you want it considered before the agency decides on further action.
My contract manufacturer was inspected, not me. Am I affected?
Often yes. Observations at your manufacturer can affect your product, your retailer relationships, and your own oversight obligations as the brand owner.
Does a 483 become public?
483s are obtainable through public-records requests and are routinely republished by third parties. Assume customers and retailers can find it.
Video Transcript
You have heard FDA inspections are stressful. But what actually happens to your business while one is going on?
For most private-label and contract-manufacturing companies, an FDA inspection does not shut you down. It occupies your best people for a few days and creates a written record you will be answering for months afterward.
An investigator usually arrives unannounced, shows credentials, and starts asking for documents — batch records, complaint files, supplier qualification, labels, and your written procedures. Whatever your team says and hands over becomes part of the record.
At the closeout meeting, anything the investigator considers a problem is written up on a Form 483, which is a list of observations. Your written response to that 483 matters more than the 483 itself. A weak response is what turns observations into a warning letter, an import hold, or a hard conversation with your retailer.
Decide now who greets the investigator, who pulls records, and who speaks for the company. One voice. Assemble your document set before you need it, not while someone is waiting in your lobby. Call your regulatory counsel the day the investigator arrives, not after the 483 lands.
If you have never walked through an inspection, contact us today.
This content is provided for educational purposes only and does not constitute legal advice. For guidance specific to your business, contact us.
Related video: How an FDA Inspection Actually Unfolds, From Notice to Closeout
Related video: Why Waiting for a Warning Letter Is the Most Expensive Compliance Strategy There Is
Service page: FDA Inspection Readiness and 483 Response