Retroactive application of regulations.
21 C.F.R. § 20.25
in effectEffective: 2024-07-01The provisions of this part apply to all records in Food and Drug Administration files.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-21.xmlFetched: 7/26/2026
