---
kind: "unit"
title: "45"
title_heading: "Public Welfare"
key: "subtA/subchC/part164"
level: "part"
label: "Part 164"
heading: "Security and Privacy"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/45/subtA-subchC-part164"
sections_count: 41
---

# Part 164 — Security and Privacy

Title 45 C.F.R. — Public Welfare › Subtitle A — Department of Health and Human Services › Subchapter C — Administrative Data Standards and Related Requirements

## Contents

- [Subpart A — General Provisions](/cfr/45/subtA-subchC-part164-subpartA.md)
- [Subpart B — Subpart B [Reserved]](/cfr/45/subtA-subchC-part164-subpartB.md)
- [Subpart C — Security Standards for the Protection of Electronic Protected Health Information](/cfr/45/subtA-subchC-part164-subpartC.md)
- [Subpart D — Notification in the Case of Breach of Unsecured Protected Health Information](/cfr/45/subtA-subchC-part164-subpartD.md)
- [Subpart E — Privacy of Individually Identifiable Health Information](/cfr/45/subtA-subchC-part164-subpartE.md)