Washington Administrative Code
Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508)
Chapter 173-420 - Conformity of transportation activities to air quality implementation plans
Section 173-420-065 - Specific criteria
Universal Citation: WA Admin Code 173-420-065
Current through Register Vol. 24-06, March 15, 2024
(1) All transportation plans, improvement programs, and projects shall comply with the criteria in subsections (2), (3), and (4) of this section.
(2) At all times the following criteria shall be met:
(a) The conformity determination for
plans, TIPs, and projects shall:
(i) Be based
on the latest planning assumptions.
(ii) Be based on the latest EPA approved
emission estimation model available.
(iii) Be made according to the consultation
procedures contained in WAC
173-420-070.
(b) The plan and TIP shall provide for the
timely implementation of TCMs from the SIP or maintenance plan.
(c) There shall be a currently conforming
plan and currently conforming TIP at the time of project approval.
(d) The project shall come from a conforming
plan and conforming TIP.
(e) In CO
and PM10 nonattainment and maintenance areas the project shall not cause or
contribute to any new localized CO or PM10 violations or increase the frequency
or severity of any existing CO or PM10 violations.
(f) In PM10 nonattainment and maintenance
areas the project shall comply with PM10 measures in the applicable SIP or
maintenance plan.
(3) Until approval of an applicable SIP by EPA the following criteria shall also be met:
(a) Plans and TIPs:
(i) In O3 nonattainment areas the action
scenario emissions shall be less than the baseline scenario
emissions.
(ii) In O3 nonattainment
areas the action scenario emissions shall be less than the 1990
emissions.
(iii) In all CO
nonattainment areas the action scenario emissions shall be less than the
baseline scenario emissions.
(iv)
In all CO nonattainment areas the action scenario emissions shall be less than
the 1990 emissions.
(v) In CO
nonattainment areas with a design value of 12.7 ppm or greater, the emissions
shall be less than or equal to the motor vehicle emissions budget.
(vi) In PM10 nonattainment areas the
emissions shall be less than or equal to the motor vehicle emissions
budget.
(vii) In PM10 nonattainment
areas the action scenario emissions shall be less than or equal to the baseline
scenario emissions or the 1990 emissions.
(b) Projects in CO nonattainment areas shall
eliminate or reduce the severity and number of localized CO violations in the
area substantially affected by the project.
(4) After approval of the SIP by EPA or when the maintenance plan is in effect the following criteria shall be met:
(a) The plan and TIP shall be consistent with
the Motor Vehicle Emissions Budget (MVEB) in the applicable SIP or maintenance
plan.
(b) No additional criteria
are required for projects.
Statutory Authority: Chapter 70.94 RCW and 40 C.F.R. Part 51 Subpart T. 95-18-022 (Order 94-31), § 173-420-065, filed 8/25/95, effective 9/25/95.
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