# 2026-14322 — Federal rules taking effect: every published US final rule whose effective date is still in the future

For 2026-14322, rule is Air Plan Approval; Iowa; Revisions to Iowa Air Quality Regulations; agency is Environmental Protection Agency; effective date is 2026-08-17; dates, as printed is This final rule is effective on August 17, 2026; cfr parts amended is 40 CFR 52, 40 CFR 70, recorded from its source on 2026-08-10.

- **FR document number:** 2026-14322 _(verified: appears in the quote below)_
- **Rule:** Air Plan Approval; Iowa; Revisions to Iowa Air Quality Regulations _(verified: appears in the quote below)_
- **Agency:** Environmental Protection Agency _(verified: appears in the quote below)_
- **Effective date:** 2026-08-17 _(verified: appears in the quote below)_
- **DATES, as printed:** This final rule is effective on August 17, 2026. _(verified: appears in the quote below)_
- **CFR parts amended:** 40 CFR 52, 40 CFR 70 _(our reading, not quoted from the source)_
- **Published:** 2026-07-16 _(verified: appears in the quote below)_

## What the source says

> {"document_number":"2026-14322","title":"Air Plan Approval; Iowa; Revisions to Iowa Air Quality Regulations","agency_names":["Environmental Protection Agency"],"effective_on":"2026-08-17","dates":"This final rule is effective on August 17, 2026.","cfr_references":[{"chapter":null,"citation_url":null,"part":"52","title":40},{"chapter":null,"citation_url":null,"part":"70","title":40}],"publication_date":"2026-07-16","html_url":"https://www.federalregister.gov/documents/2026/07/16/2026-14322/air-plan-approval-iowa-revisions-to-iowa-air-quality-regulations"}

## Source

- https://www.federalregister.gov/api/v1/documents.json?per_page=1000&order=oldest&conditions%5Btype%5D%5B%5D=RULE&conditions%5Beffective_date%5D%5Bgte%5D=2026-08-11&conditions%5Beffective_date%5D%5Blte%5D=2026-12-31&fields%5B%5D=document_number&fields%5B%5D=title&fields%5B%5D=agency_names&fields%5B%5D=effective_on&fields%5B%5D=dates&fields%5B%5D=cfr_references&fields%5B%5D=publication_date&fields%5B%5D=html_url

Last verified: 2026-08-10. Review by: 2026-08-24.
Part of [Federal rules taking effect: every published US final rule whose effective date is still in the future](https://referencesource.org/federal-rules-taking-effect/).