Air Plan Approval; Rhode Island; Regional Haze State Implementation Plan for the Second Implementation Period; Prong 4 (Visibility) for the 2015 8-Hour Ozone National Ambient Air Quality Standard
Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register April 9, 2026. Document 2026-06838. Updated Nov. 12, 2026.
- What it does
The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of Rhode Island on March 7, 2025, as satisfying the applicable requirements under the Clean Air Act (CAA) and EPA's Regional Haze Rule (RHR) for the program's second implementation period. Rhode Island's SIP submission addresses the requirement that states must periodically revise their long-term strategies for making reasonable progress towards the national goal of preventing any future, and remedying any existing, anthropogenic impairment of visibility, including regional haze, in mandatory Class I Federal areas. The SIP submission also addresses other applicable requirements for the second implementation period of the regional haze program. EPA is also approving the remaining element of Rhode Island's September 23, 2020, infrastructure SIP (ISIP) submittal for the 2015 ozone National Ambient Air Quality Standard (NAAQS). The approval of Rhode Island's second implementation period regional haze plan addresses ISIP requirements related to visibility protection. The EPA is taking this action pursuant to sections 110 and 169A of the Clean Air Act.
The Environmental Protection Agency's summary, as published in the Federal Register.
- What changed in the regulation
1 part of Title 40 of the Code of Federal Regulations:
Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).
- Compared with
The Environmental Protection Agency has published 245 final rules in 2026 so far, compared with 263 in all of 2025.
Counted by the Tribune from Federal Register records since Jan. 1, 2025.
- What happens next and when
This rule is effective on May 11, 2026.
The agency's dates, word for word.
The record as published
| Document number | 2026-06838 |
|---|---|
| Action | Final rule. |
| Agencies | Environmental Protection Agency |
| Published | April 9, 2026 |
| Effective date | May 11, 2026 |
| Docket | EPA-R01-OAR-2025-0915 |
Source: the Federal Register (public domain). The document in the Federal Register