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Regulations last checked for updates: Nov 22, 2024
Title 40 - Protection of Environment last revised: Nov 20, 2024
All Titles
Title 40
Chapter I
Part 52
Subpart M - Subpart M—Hawaii
§ 52.620 - Identification of plan.
§ 52.621 - Classification of regions.
§ 52.622 - Original identification of plan.
§ 52.623 - Approval status.
§ 52.624 - General requirements.
§ 52.625 - Legal authority.
§ 52.626 - Compliance schedules.
§§ 52.627-52.631 - §[Reserved]
§ 52.632 - Significant deterioration of air quality.
§ 52.633 - Visibility protection.
§ 52.634 - Particulate matter (PM-10) Group III SIP.
authority:
42 U.S.C. 7401
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