21 CFR

Part 316 Orphan Drugs

24 sections Official text on eCFR

Subpart A - General Provisions

Subpart B - Written Recommendations for Investigations of Orphan Drugs

Subpart C - Designation of an Orphan Drug

Subpart D - Orphan-drug Exclusive Approval

Subpart E - Open Protocols for Investigations

Subpart F - Availability of Information