---
kind: "unit"
title: "45"
title_heading: "Public Welfare"
key: "subtB/chIII/part309"
level: "part"
label: "Part 309"
heading: "Tribal Child Support Enforcement (iv-D) Program"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/45/subtB-chIII-part309"
sections_count: 34
---

# Part 309 — Tribal Child Support Enforcement (iv-D) Program

Title 45 C.F.R. — Public Welfare › Subtitle B — Regulations Relating to Public Welfare › Chapter III — Office of Child Support Services, Administration of Families and Services, Department of Health and Human Services

## Contents

- [Subpart A — Tribal IV-D Program: General Provisions](/cfr/45/subtB-chIII-part309-subpartA.md)
- [Subpart B — Tribal IV-D Program Application Procedures](/cfr/45/subtB-chIII-part309-subpartB.md)
- [Subpart C — Tribal IV-D Plan Requirements](/cfr/45/subtB-chIII-part309-subpartC.md)
- [Subpart D — Tribal IV-D Program Funding](/cfr/45/subtB-chIII-part309-subpartD.md)
- [Subpart E — Accountability and Monitoring](/cfr/45/subtB-chIII-part309-subpartE.md)
- [Subpart F — Statistical and Narrative Reporting Requirements](/cfr/45/subtB-chIII-part309-subpartF.md)