Ariz. Admin. Code § 18-2-1402

Current through Register Vol. 30, No. 50, December 13, 2024

Section R18-2-1402 - Applicability

A. Except as provided for in subsection (F) or R18-2-1434, conformity determinations are required for all of the following:

1. The adoption, acceptance, approval, or support of transportation plans developed pursuant to 23 CFR 450 or 49 CFR 613 by an MPO or USDOT.

2. The adoption, acceptance, approval, or support of TIPs developed pursuant to 23 CFR 450 or 49 CFR 613 by an MPO or USDOT.

3. The approval, funding, or implementation of FHWA or FTA projects.

B. Conformity determinations are not required under this Article for individual projects which are not FHWA or FTA projects. However, R18-2-1429 applies to such projects if they are regionally significant.

C. The provisions of this Article shall apply in all nonattainment and maintenance areas for transportation-related criteria pollutants for which the area is designated nonattainment or has a maintenance plan.

D. The provisions of this Article apply with respect to emissions of the following criteria pollutants: ozone, carbon monoxide, nitrogen dioxide, and particles with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM₁₀ ).

E. The provisions of this Article apply with respect to emissions of the following precursor pollutants:

1. Volatile organic compounds and nitrogen oxides in ozone areas (unless the Administrator determines under § 182(f) of the CAA that additional reductions of NOx would not contribute to attainment).

2. Nitrogen oxides in nitrogen dioxide areas.

3. Volatile organic compounds, nitrogen oxides, and PM₁₀ in PM₁₀ areas if either of the following apply:

a. During the interim period, the EPA Regional Administrator or the Director of ADEQ has made a finding (including a finding in an applicable implementation plan or a submitted implementation plan revision) that transportation-related precursor emissions within the nonattainment area are a significant contributor to the PM₁₀ nonattainment problem and has so notified ADOT or the MPO where one exists and USDOT.

b. During the transitional, control strategy, and maintenance periods, the applicable implementation plan or implementation plan submission establishes a budget for such emissions as part of the reasonable further progress, attainment, or maintenance strategy.

F. Projects subject to this Article for which the NEPA process and a conformity determination have been completed by FHWA or FTA may proceed toward implementation without further conformity determinations if one of the following major steps has occurred within the most recent three-year period: NEPA process completion; formal start of final design; acquisition of a significant portion of the right-of-way; or approval of the plans, specifications, and estimates. All phases of such projects which were considered in the conformity determination are also included, if those phases were for the purpose of funding, final design, right-of-way acquisition, construction, or any combination of these phases.

G. A new conformity determination for the project will be required if there is a significant change in project design concept and scope, if a supplemental environmental document for air quality purposes is initiated, or if no major steps to advance the project have occurred within the most recent three-year period.

Ariz. Admin. Code § R18-2-1402

Adopted effective June 15, 1995 (Supp. 95-2).