---
kind: "unit"
title: "45"
title_heading: "Public Welfare"
key: "subtA/subchB/part155"
level: "part"
label: "Part 155"
heading: "Exchange Establishment Standards and Other Related Standards under the Affordable Care Act"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/45/subtA-subchB-part155"
sections_count: 126
---

# Part 155 — Exchange Establishment Standards and Other Related Standards under the Affordable Care Act

Title 45 C.F.R. — Public Welfare › Subtitle A — Department of Health and Human Services › Subchapter B — Requirements Relating to Health Care Access

## Contents

- [Subpart A — General Provisions.](/cfr/45/subtA-subchB-part155-subpartA.md)
- [Subpart B — General Standards Related to the Establishment of an Exchange](/cfr/45/subtA-subchB-part155-subpartB.md)
- [Subpart C — General Functions of an Exchange](/cfr/45/subtA-subchB-part155-subpartC.md)
- [Subpart D — Exchange Functions in the Individual Market: Eligibility Determinations for Exchange Participation and Insurance Affordability Programs](/cfr/45/subtA-subchB-part155-subpartD.md)
- [Subpart E — Exchange Functions in the Individual Market: Enrollment in Qualified Health Plans](/cfr/45/subtA-subchB-part155-subpartE.md)
- [Subpart F — Appeals of Eligibility Determinations for Exchange Participation and Insurance Affordability Programs](/cfr/45/subtA-subchB-part155-subpartF.md)
- [Subpart G — Exchange Functions in the Individual Market: Eligibility Determinations for Exemptions](/cfr/45/subtA-subchB-part155-subpartG.md)
- [Subpart H — Exchange Functions: Small Business Health Options Program (SHOP)](/cfr/45/subtA-subchB-part155-subpartH.md)
- [Subpart I-J — Subparts I-J [Reserved]](/cfr/45/subtA-subchB-part155-subpartI-J.md)
- [Subpart K — Exchange Functions: Certification of Qualified Health Plans](/cfr/45/subtA-subchB-part155-subpartK.md)
- [Subpart L — Subpart L [Reserved]](/cfr/45/subtA-subchB-part155-subpartL.md)
- [Subpart M — Oversight and Program Integrity Standards for State Exchanges](/cfr/45/subtA-subchB-part155-subpartM.md)
- [Subpart N — State Flexibility](/cfr/45/subtA-subchB-part155-subpartN.md)
- [Subpart O — Quality Reporting Standards for Exchanges](/cfr/45/subtA-subchB-part155-subpartO.md)
- [Subpart P — Improper Payment Pre-Testing and Assessment (IPPTA) for State-based Exchanges](/cfr/45/subtA-subchB-part155-subpartP.md)
- [Subpart Q — State Exchange Improper Payment Measurement (SEIPM)](/cfr/45/subtA-subchB-part155-subpartQ.md)