Partial Approval and Partial Disapproval of Air Quality Implementation Plans; Hawaii; Regi
The Environmental Protection Agency (EPA) is proposing to partially approve and partially disapprove the regional haze state implementation plan (SIP) revision submitted by Hawaii on August 2, 2024, under the Clean Air Act (CAA) and the EPA's Regional Haze Rule (RHR) for the program's second implementation period. Hawa
| Agency | Environmental Protection Agency |
|---|---|
| Document type | Proposed Rule |
| Published | 2026-02-17 |
| Summary | The Environmental Protection Agency (EPA) is proposing to partially approve and partially disapprove the regional haze state implementation plan (SIP) revision submitted by Hawaii on August 2, 2024, under the Clean Air Act (CAA) and the EPA's Regional Haze Rule (RHR) for the program's second implementation period. Hawaii's SIP submission is intended to address 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 appli |
| Document number | 2026-03072 |
| Official record | https://www.federalregister.gov/documents/2026/02/17/2026-03072/partial-approval-and-partial-disapproval-of-air-quality-implementation-plans-hawaii-regional-haze |