Subparti. clean air
- § 7470 - Congressional declaration of purpose
- § 7471 - Plan requirements
- § 7472 - Initial classifications
- § 7473 - Increments and ceilings
- § 7474 - Area redesignation
- § 7475 - Preconstruction requirements
- § 7476 - Other pollutants
- § 7477 - Enforcement
- § 7478 - Period before plan approval
- § 7479 - Definitions