ABSTRACT
The Clean Air Act contemplates a system of joint control of air pollution by the federal and state governments. Under the Act each state is required to prepare implementation plans to achieve the ambient air quality standards adopted by the federal government. Environmental Protection Agency (EPA) was authorized to review state implementation plans (sip) and to prescribe rules for the preparation of those plans. Every sip should provide for compliance schedules prepared by each source of pollution within a control region and containing a detailed, step-by-step schedule of measures it will take to bring it within compliance of the objectives of the plan. The sip must contain legally enforceable procedures that will enable the state to prevent the construction or modification of any stationary source that would, directly or indirectly, interfere with attainment or maintenance of the air quality standards. The Clean Air Act provides for pollution control through a joint effort of the state and federal governments.
