PUBLIC LAW 101-549—NOV. 15, 1990 104 STAT. 2423 "(A) finds that a State has failed to make a required submission or finds that the plan or plan revision submitted by the State does not satisfy the minimum criteria established under section 110(k)(l)(A), or "(B) disapproves a State implementation plan submission in whole or in part, unless the State corrects the deficiency, and the Administrator approves the plan or plan revision, before the Administrator promulgates such Federal implementation plan.". SEC. 103. ADDITIONAL PROVISIONS FOR OZONE NONATTAINMENT AREAS. Part D of title I of the Clean Air Act is amended by adding the following new subpart at the end thereof: "Subpart 2—Additional Provisions for Ozone Nonattainment Areas "Sec. 181. Classifications and attainment dates. "Sec. 182. Plan submissions and requirements. "Sec. 183. Federal ozone measures. "Sec. 184. Control of interstate ozone air pollution. "Sec. 185. Enforcement for Severe and Extreme ozone nonattainment areas for failure to attain. "Sec. 185A. Transitional areas. "Sec. 185B. NOX and VOC study. " SEC. 181. CLASSIFICATIONS AND ATTAINMENT DATES. 42 USC 7511. " (a) CLASSIFICATION AND ATTAINMENT DATES FOR 1989 NONATTAIN- MENT AREAS. —(1) Each area designated nonattainment for ozone pursuant to section 107(d) shall be classified at the time of such designation, under table 1, by operation of law, as a Marginal Area, a Moderate Area, a Serious Area, a Severe Area, or an Extreme Area based on the design value for the area. The design value shall be calculated according to the interpretation methodology issued by the Administrator most recently before the date of the enactment of the Clean Air Act Amendments of 1990. For each area classified under this subsection, the primary standard attainment date for ozone shall be as expeditiously as practicable but not later than the date provided in table 1. "TABLE 1 A-^acla^ Design value- ^SS^TS^. Margi nal 0.121 up to 0.138 3 years after enactment Moderate 0.138 up to 0.160 6 years after enactment Serious 0.160 up to 0.180 9 years after enactment Severe 0.180 up to 0.280 15 years after enactment Extreme 0.280 and above 20 years after enactment
- The design value is measured in parts per million (ppm).
- *The primary standard attainment date is measured from the date of the enactment of the
Clean Air Amendments of 1990.
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