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Title 40

Displaying title 40, up to date as of 7/14/2026. Title 40 was last amended 7/14/2026.
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Title 40Protection of EnvironmentPart / Section
Chapter IEnvironmental Protection Agency1 – 1099
Subchapter CAir Programs50 – 99
Part 52Approval and Promulgation of Implementation Plans52.01 – 52.2999
Subpart DArizona52.119 – 52.153
§ 52.119Identification of plan—conditional approvals.
§ 52.120Identification of plan.
§ 52.121Classification of regions.
§ 52.122Negative declarations.
§ 52.123Approval status.
§ 52.124Part D disapproval.
§ 52.125Control strategy and regulations: Sulfur oxides.
§ 52.126Control strategy and regulations: Particulate matter.
§ 52.127Control strategy and regulations: Lead.
§ 52.128Rule for unpaved parking lots, unpaved roads and vacant lots.
§ 52.129Review of new sources and modifications.
§ 52.130Source surveillance.
§ 52.131Control Strategy and regulations: Fine Particle Matter.
§ 52.132 [Reserved]
§ 52.133Rules and regulations.
§ 52.134Compliance schedules.
§ 52.135Resources.
§ 52.136Control strategy for ozone: Oxides of nitrogen.
§ 52.137 [Reserved]
§ 52.138Conformity procedures.
§ 52.139 [Reserved]
§ 52.140Monitoring transportation trends.
§ 52.141 [Reserved]
§ 52.142Federal Implementation Plan for Tri-Cities landfill, Salt River Pima-Maricopa Indian Community.
§ 52.143 [Reserved]
§ 52.144Significant deterioration of air quality.
§ 52.145Visibility protection.
§ 52.146Particulate matter (PM-10) Group II SIP commitments.
§ 52.147Interstate transport.
§ 52.150Yavapai-Apache Reservation.
§ 52.151Operating permits.
§ 52.152Original identification of plan.
§ 52.153Control strategy and regulations: Ozone.