Clean Air Act Title I - Air Pollution Prevention and Control, Parts A through D

Part A - Air Quality and Emission Limitations

Part B - Ozone Protection

The 1990 Amendments of the Clean Air Act repealed Part B and replaced it with Title VI - Stratospheric Ozone Protection.

Part C - Prevention of Significant Deterioration of Air Quality

Subpart	Clean Air Act Section	U.S. Code	Title
1 - Clean Air	160	7470	Purposes
1 - Clean Air	161	7471	Plan requirements
1 - Clean Air	162	7472	Initial classifications
1 - Clean Air	163	7473	Increments and ceilings
1 - Clean Air	164	7474	Area redesignation
1 - Clean Air	165	7475	Preconstruction requirements
1 - Clean Air	166	7476	Other pollutants
1 - Clean Air	167	7477	Enforcement
1 - Clean Air	168	7478	Period before plan approval
1 - Clean Air	169	7479	Definitions
2 - Visibility Protection	169A	7491	Visibility protection for Federal class I areas
2 - Visibility Protection	169B	7492	Visibility

Part D - Plan Requirements for Nonattainment Areas

Subpart	Clean Air Act Section	U.S. Code	Title
1 - Nonattainment areas in general	171	7501	Definitions
1 - Nonattainment areas in general	172	7502	Nonattainment plan provisions
1 - Nonattainment areas in general	173	7503	Permit requirements
1 - Nonattainment areas in general	174	7504	Planning procedures
1 - Nonattainment areas in general	175	7505	Environmental Protection Agency grants.
1 - Nonattainment areas in general	175A	7505a	Maintenance Plans
1 - Nonattainment areas in general	176	7506	Limitation on certain Federal assistance
1 - Nonattainment areas in general	176A	7506a	Interstate transport commissions
1 - Nonattainment areas in general	177	7507	New motor vehicle emission standards in nonattainment areas
1 - Nonattainment areas in general	178	7508	Guidance documents
1 - Nonattainment areas in general	179	7509	Sanctions and consequences of failure to attain
1 - Nonattainment areas in general	179B	7509a	International border areas
2 - Additional provisions for ozone nonattainment areas	181	7511	Classifications and attainment dates
2 - Additional provisions for ozone nonattainment areas	182	7511a	Plan submissions and requirements
2 - Additional provisions for ozone nonattainment areas	183	7511b	Federal ozone measures
2 - Additional provisions for ozone nonattainment areas	184	7511c	Control of interstate ozone air pollution
2 - Additional provisions for ozone nonattainment areas	185	7511d	Enforcement for Severe and Extreme ozone nonattainment areas for failure to attain
2 - Additional provisions for ozone nonattainment areas	185A	7511e	Transitional areas
2 - Additional provisions for ozone nonattainment areas	185B	7511f	NOx and VOC study
3 - Additional provisions for carbon monoxide nonattainment areas	186	7512	Classification and attainment dates
3 - Additional provisions for carbon monoxide nonattainment areas	187	7512a	Plan submissions and requirements
4 -Additional provisions for particulate matter nonattainment	188	7513	Classification and attainment dates
4 -Additional provisions for particulate matter nonattainment	189	7513a	Plan provisions and schedules for plan submissions
4 -Additional provisions for particulate matter nonattainment	190	7513b	Issuance of RACM and BACM guidance
5 - Additional provisions for designated nonattainment for sulfur oxides, nitrogen dioxide, or lead	191	7514	Plan submission deadlines
5 - Additional provisions for designated nonattainment for sulfur oxides, nitrogen dioxide, or lead	192	7514a	Attainment dates
6 - Savings provisions	193	7515	General savings clause