---
kind: "unit"
title: "45"
title_heading: "Public Welfare"
key: "subtB/chIII"
level: "chapter"
label: "Chapter III"
heading: "Office of Child Support Services, Administration of Families and Services, Department of Health and Human Services"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/45/subtB-chIII"
sections_count: 168
---

# Chapter III — Office of Child Support Services, Administration of Families and Services, Department of Health and Human Services

Title 45 C.F.R. — Public Welfare › Subtitle B — Regulations Relating to Public Welfare

## Contents

- [Part 301 — State Plan Approval and Grant Procedures](/cfr/45/subtB-chIII-part301.md)
- [Part 302 — State Plan Requirements](/cfr/45/subtB-chIII-part302.md)
- [Part 303 — Standards for Program Operations](/cfr/45/subtB-chIII-part303.md)
- [Part 304 — Federal Financial Participation](/cfr/45/subtB-chIII-part304.md)
- [Part 305 — Program Performance Measures, Standards, Financial Incentives, and Penalties](/cfr/45/subtB-chIII-part305.md)
- [Part 306 — Part 306 [reserved]](/cfr/45/subtB-chIII-part306.md)
- [Part 307 — Computerized Support Enforcement Systems](/cfr/45/subtB-chIII-part307.md)
- [Part 308 — Annual State Self-Assessment Review and Report](/cfr/45/subtB-chIII-part308.md)
- [Part 309 — Tribal Child Support Enforcement (iv-D) Program](/cfr/45/subtB-chIII-part309.md)
- [Part 310 — Computerized Tribal Iv-D Systems and Office Automation](/cfr/45/subtB-chIII-part310.md)
- [Part 311-399 — Parts 311-399 [reserved]](/cfr/45/subtB-chIII-part311-399.md)