TX171.01 Air Quality State Implementation Plans; Approval and Promulgation; Texas; Determination of Attainment; Houston-Galveston-Brazoria 1997 Ozone Nonattainment Area; Determination of Attainment of the 1997 Ozone Standard, Proposed rule, 4 pages.
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TX171.01 Air Quality State Implementation Plans; Approval and Promulgation; Texas; Determination of Attainment; Houston-Galveston-Brazoria 1997 Ozone Nonattainment Area; Determination of Attainment of the 1997 Ozone Standard, Proposed rule, 4 pages.
Source: EPA Regulations news 2