WASHINGTON, Sept. 19 -- Food and Drug Administration has issued a rule called: Regulation Identification Number 0910-AJ05 Medical Devices; Laboratory Developed Tests; Implementation of Vacatur.

The rule was published in the Federal Register on Sept. 19 by Robert F. Kennedy, Secretary, Department of Health and Human Services.

Summary: On May 6, 2024, the Food and Drug Administration (FDA, the Agency, or we) issued a final rule amending the definition of "in vitro diagnostic products" in FDA's regulations. On March 31, 2025, a federal district court vacated that rule. This final rule reverts to the text of the regulation as it existed prior to the effective date of the May 2024 final rule.

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