CFR›Title 21›Chapter I›Part 601›Subpart F ContainsSections 601.50–601.51CorpusDaily eCFRDisplayed edition2026-06-03Last updated2026-06-03 Subpart F—Confidentiality of Information Sections 601.50 § 601.50 Confidentiality of data and information in an investigational new drug notice for a biological product. 601.51 § 601.51 Confidentiality of data and information in applications for biologics licenses. Previous E Subpart E—Accelerated Approval of Biological Products for Serious or Life-Threatening Illnesses Next G Subpart G—Postmarketing Studies