---
kind: "unit"
title: "21"
title_heading: "Food and Drugs"
key: "ch9/schV/ptB"
level: "part"
label: "Part B"
heading: "Drugs for Rare Diseases or Conditions"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/21/ch9-schV-ptB"
sections_count: 8
---

# Part B — Drugs for Rare Diseases or Conditions

Title 21 — Food and Drugs › Chapter 9 — Federal Food, Drug, and Cosmetic Act › Subchapter V — Drugs and Devices

## Sections

- [§360aa. Recommendations for investigations of drugs for rare diseases or conditions](/usc/21/360aa.md)
- [§360bb. Designation of drugs for rare diseases or conditions](/usc/21/360bb.md)
- [§360cc. Protection for drugs for rare diseases or conditions](/usc/21/360cc.md)
- [§360dd. Open protocols for investigations of drugs for rare diseases or conditions](/usc/21/360dd.md)
- [§360ee. Grants and contracts for development of drugs for rare diseases and conditions](/usc/21/360ee.md)
- [§360ee–1. FDA rare neurodegenerative disease grant program](/usc/21/360ee-1.md)
- [§360ff. Priority review to encourage treatments for rare pediatric diseases](/usc/21/360ff.md)
- [§360ff–1. Targeted drugs for rare diseases](/usc/21/360ff-1.md)