# Partial Approval and Partial Disapproval of Air Quality Implementation Plans; Hawaii; Regional Haze State Implementation Plan for the Second Implementation Period

> **EPA** · Rulemaking · Modified 2026-04-21T15:53:44Z

## Docket
- **Docket ID:** EPA-R09-OAR-2025-0152
- **Agency:** EPA
- **Type:** Rulemaking
- **Last modified:** 2026-04-21T15:53:44Z

## Source
- [regulations.gov docket](https://www.regulations.gov/docket/EPA-R09-OAR-2025-0152)
- [Public comments](https://www.regulations.gov/docket/EPA-R09-OAR-2025-0152/comments)

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