---
kind: "unit"
title: "40"
title_heading: "Protection of Environment"
key: "chI/subchC/part52/subpartOO"
level: "subpart"
label: "Subpart OO"
heading: "Rhode Island"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40/chI-subchC-part52-subpartOO"
sections_count: 19
---

# Subpart OO — Rhode Island

Title 40 C.F.R. — Protection of Environment › Chapter I — Environmental Protection Agency › Subchapter C — Air Programs › Part 52 — Approval and Promulgation of Implementation Plans

## Sections

- [§52.2070. Identification of plan.](/cfr/40/52.2070.md)
- [§52.2071. Classification of regions.](/cfr/40/52.2071.md)
- [§52.2072. Approval status.](/cfr/40/52.2072.md)
- [§52.2073. Reserved](/cfr/40/52.2073.md)
- [§52.2074. Legal authority.](/cfr/40/52.2074.md)
- [§52.2075. Reserved](/cfr/40/52.2075.md)
- [§52.2076. Attainment of dates for national standards.](/cfr/40/52.2076.md)
- [§52.2077. Identification of plan—conditional approvals and disapprovals.](/cfr/40/52.2077.md)
- [§52.2078-52.2079. Reserved](/cfr/40/52.2078-52.2079.md)
- [§52.2080. Revisions.](/cfr/40/52.2080.md)
- [§52.2081. EPA-approved EPA Rhode Island State regulations.](/cfr/40/52.2081.md)
- [§52.2082. Reserved](/cfr/40/52.2082.md)
- [§52.2083. Significant deterioration of air quality.](/cfr/40/52.2083.md)
- [§52.2084. Rules and regulations.](/cfr/40/52.2084.md)
- [§52.2085. Stack height review.](/cfr/40/52.2085.md)
- [§52.2086. Emission inventories.](/cfr/40/52.2086.md)
- [§52.2087. Original identification of plan section.](/cfr/40/52.2087.md)
- [§52.2088. Control strategy: Ozone.](/cfr/40/52.2088.md)
- [§52.2089. Control strategy: carbon monoxide.](/cfr/40/52.2089.md)