Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 2 - DEPARTMENT OF ENVIRONMENTAL - QUALITY AIR POLLUTION CONTROL › Article 14 - CONFORMITY DETERMINATIONS › Section R18-2-1425 - Criteria and Procedures: Interim Period Reductions for PM[10] and NO[2] Areas (Transportation Plan)

Current through Register Vol. 30, No. 28, July 12, 2024
A. A transportation plan shall contribute to
				emission reductions or shall 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 transportation plan. This criterion may be satisfied if the
				requirements of either subsections (B) or (C) are met.
B. Demonstrate that implementation of the
				plan and all other regionally significant transportation projects expected in
				the nonattainment area will contribute to reductions in emissions of
				PM10 in a PM10 nonattainment
				area, and of each transportation-related precursor of
				PM10 in PM10 nonattainment areas
				if the EPA Regional Administrator or the Director of ADEQ 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 USDOT, 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. Analysis years
				shall be no more than 10 years apart. The first analysis year shall be no later
				than 1996 (for NO2 areas) or four years and six months
				following the date of designation (for PM10 areas). The
				second analysis year shall be either the attainment year for the area or, if
				the attainment year is the same as the first analysis year or earlier, the
				second analysis year shall be at least five years beyond the first analysis
				year. The last year of the transportation plan's forecast period shall also be
				an analysis year.
2. Define for
				each of the analysis years the Baseline scenario, as defined in
				R18-2-1422(C),
				and the Action scenario, as defined in
				R18-2-1422(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 and determine the difference between the two
				scenarios in regional PM10 emissions in a
				PM10 nonattainment area (and transportation-related
				precursors of PM10 in PM10
				nonattainment areas if the EPA Regional Administrator or the Director of ADEQ
				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 ADOT, the MPO where one exists and
				USDOT) and in NOx emissions in an NO2 nonattainment
				area. The analysis shall be performed for each of the analysis years according
				to the requirements of
				R18-2-1430.
				The analysis shall address the periods between the analysis years and the
				periods between 1990, the first milestone year if any, and the first of the
				analysis years. Emissions in milestone years which are between the analysis
				years may be determined by interpolation.
4. Demonstrate that the regional
				PM10 emissions and PM10 precursor
				emissions, where applicable, (for PM10 nonattainment
				areas) and NOx emissions (for NO2 nonattainment areas)
				predicted in the Action scenario are less than the emissions predicted from the
				Baseline scenario in each analysis year, and that this can reasonably be
				expected to be true in the periods between the first milestone year (if any)
				and the analysis years.