---
kind: "unit"
title: "45"
title_heading: "Public Welfare"
key: "subtA/subchA/part46"
level: "part"
label: "Part 46"
heading: "Protection of Human Subjects"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/45/subtA-subchA-part46"
sections_count: 50
---

# Part 46 — Protection of Human Subjects

Title 45 C.F.R. — Public Welfare › Subtitle A — Department of Health and Human Services › Subchapter A — General Administration

## Contents

- [Subpart A — Basic HHS Policy for Protection of Human Research Subjects](/cfr/45/subtA-subchA-part46-subpartA.md)
- [Subpart B — Additional Protections for Pregnant Women, Human Fetuses and Neonates Involved in Research](/cfr/45/subtA-subchA-part46-subpartB.md)
- [Subpart C — Additional Protections Pertaining to Biomedical and Behavioral Research Involving Prisoners as Subjects](/cfr/45/subtA-subchA-part46-subpartC.md)
- [Subpart D — Additional Protections for Children Involved as Subjects in Research](/cfr/45/subtA-subchA-part46-subpartD.md)
- [Subpart E — Registration of Institutional Review Boards](/cfr/45/subtA-subchA-part46-subpartE.md)