GBUAPCD RULE 1227 CRIT. & PROC.: REDUC.FOR PM10 & NO2 (TIP)
LAST REVISED 11/11/11

§ 1227 Criteria and procedures: Interim period reductions for PM10 and NO2 areas (TIP).

(a) A TIP must contribute to emission reductions or must not increase emissions in PM10 and NO2 nonattainment areas. This criterion applies only during the interim and transitional periods. It applies to the net effect on emissions of all projects contained in a new or revised TIP. This criterion may be satisfied if the requirements of either paragraph (b) or paragraph (c) of this section are met.

(b) Demonstrate that implementation of the plan and TIP and all other regionally significant projects expected in the nonattainment area will contribute to reductions in emissions of PM10 in a PM10 nonattainment area (and transportation-related precursors of PM10 in PM10 nonattainment areas if the EPA Regional Administrator or the director of the State air agency has made a finding that such precursor emissions from within the nonattainment area are a significant contributor to the PM10 nonattainment problem and has so notified the MPO and DOT) and of NOx in an NO2 nonattainment area, by performing a regional emissions analysis as follows:

(1) Determine the analysis years for which emissions are to be estimated, according to the requirements of § 1226(b)(1).

(2) Define for each of the analysis years the 'Baseline' scenario, as defined in § 1224(c), and the 'Action' scenario, as defined in § 1224(d).

(3) Estimate the emissions predicted to result in each analysis year from travel on the transportation systems defined by the 'Baseline' and 'Action' scenarios as required by § 1226(b)(3), and make the demonstration required by § 1226(b)(4).

(c) Demonstrate that when the projects in the transportation plan and TIP and all other regionally significant projects expected in the area are implemented, the transportation system's total highway and transit emissions of PM10 in a PM10 nonattainment area (and transportation-related precursors of PM10 in PM10 nonattainment areas if the EPA Regional Administrator or the director of the State air agency has made a finding that such precursor emissions from within the nonattainment area are a significant contributor to the PM10 nonattainment problem and has so notified the MPO and DOT) and of NOx in an NO2 nonattainment area will not be greater than baseline levels, by performing a regional emissions analysis as required by § 1226(c)(1), (2), and (3).