Form 483 (FDA Observations)
RegulatoryAlso known as: FDA 483, 483 observations, Inspectional Observations
A document listing conditions an FDA investigator observed during a facility inspection that may violate regulations.
What It Means
FDA Form 483 is issued at the end of an inspection when an investigator has observed conditions that, in their judgment, may constitute violations of the Federal Food, Drug, and Cosmetic Act or related regulations. Each observation describes a specific condition found during the inspection. Receiving a 483 is not a finding of violation — it is a notification of observations. Companies have 15 business days to respond in writing. Unresolved 483 observations may escalate to Warning Letters, import alerts, or enforcement actions. 483 observations are public record and searchable on FDA.gov.
What It Is Not
A Form 483 is NOT a Warning Letter, a fine, or a product recall. It is an observation, not an enforcement action. Many facilities receive 483 observations and correct them without further action. However, the pattern of 483s over time reveals whether a facility takes quality seriously. A facility that claims 'no 483 observations' may simply not have been inspected recently — FDA cannot inspect all facilities on a regular schedule.
Evidence and References
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