SUBPART LL—Oklahoma (§52.1920 to §52.1960)
- 52.1920—Identification of plan.
- 52.1921—Classification of regions.
- 52.1922—Approval status.
- 52.1929—Significant deterioration of air quality.
- 52.1931—Petroleum storage tank controls.
- 52.1934—Prevention of air pollution emergency episodes.
- 52.1935—Small business assistance program.
- 52.1960—Original Identification of plan section.