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This rulemaking will amend the Virus-Serum-Toxin Act regulations to replace the current label format, which reflects any of four different levels of effectiveness, with a single, uniform label format. It also will require biologics licensees to provide a standardized summary, with confidential business information removed, of the efficacy and safety data submitted to the Animal and Plant Health Inspection Service in support of the issuance of a full product license or conditional license. A single label format, along with publicly available safety and efficacy data, will help biologics producers to more clearly communicate product performance to their customers.