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 173-420-040 - Definitions

Current through Register Vol. 24-14, July 15, 2024
The following definitions will apply unless a different meaning
				is clearly required by context:
"Criteria pollutants" means air pollutants for which a NAAQS
				has been promulgated under the federal Clean Air Act (   40 C.F.R. 50) and their
				precursors and, for this chapter, applies only to those pollutants for which
				nonattainment or maintenance areas have been designated.
"Action scenario" means the future transportation system
				determined pursuant to the federal transportation conformity regulation ( 40
				C.F.R. Part 51  Subpart T) in a year that is being analyzed for conformity that
				will result from the implementation of the proposed plan and/or transportation
				improvement program.
"Baseline scenario" means the transportation system determined
				pursuant to the federal transportation conformity regulation ( 40 C.F.R. Part 51
				 Subpart T) in a year that is being analyzed for conformity that would result
				from the plan, improvement program, and facilities, services, and activities
				that are in effect in the year the conformity analysis is being
				conducted.
"Lead agency" means the agency with primary responsibility for
				ensuring plan, program, or project compliance with SEPA, (chapter 197-11
				WAC).
"Maintenance area" means any geographic region of the United
				States previously designated nonattainment pursuant to the CAA Amendments of
				1990 and subsequently redesignated to attainments subject to the requirement to
				develop a maintenance plan under section 175A of the CAA, as amended.
"Metropolitan area boundary" (MAB) means an area determined by
				an agreement between the governor and the MPO as defined in
				23 U.S.C.
				134.
"Metropolitan planning organization" (MPO) means an
				organization for each urbanized area of more than fifty thousand people as
				defined in 23 U.S.C.
				134, whose responsibilities include
				development of transportation plans and improvement programs for those
				areas.
"Motor vehicle emission budget" means that portion of the total
				allowable emission defined in a state implementation plan for a certain date
				for the purpose of meeting attainment or maintenance demonstrations for any
				criteria pollutant or its precursors, that is allocated by the SIP to highway
				and transit vehicles.
"National ambient air quality standards" (NAAQS) means air
				quality standards promulgated for criteria pollutants under the federal Clean
				Air Act ( 40 C.F.R. 50). The standard for carbon monoxide is thirty-five parts
				per million over a one-hour period or nine parts per million over an eight-hour
				period. The standard for ozone is 0.12 parts per million over a one-hour
				period. The standard for PM10 is fifty MICROg/m3
				annual arithmetic mean or 150 MICROg/m3 maximum
				twenty-four hour average concentration.
"Nonattainment area" means the geographic area designated as
				not meeting the NAAQS for a criteria pollutant. The boundaries are proposed by
				the governor, approved by the federal Environmental Protection Agency (EPA),
				and include that area required to implement plans and programs for attainment
				of the NAAQS published in the federal register.
"Regional transportation system" means the transportation
				system identified by an MPO in development of planning requirements under the
				federal Intermodal Surface Transportation Efficiency Act (ISTEA) (P.L.
				102-240).
"Regionally significant project" means a transportation project
				that is on a facility which serves regional transportation needs and would
				normally be included in the modeling of a metropolitan area's transportation
				network, including at a minimum all principal arterial highways and all fixed
				guideway transit facilities that offer an alternative for regional highway
				travel.
"State implementation plan" (SIP) means a plan as defined in
				section 302(q) of the CAA and which implements the relevant requirements of the
				CAA that is intended to eliminate or reduce the severity and number of
				violations of the national ambient air quality standards and expeditiously
				achieve those standards, and includes the revision referred to as the
				maintenance plan that provides for the maintenance of the NAAQS in the area
				concerned for at least ten years after the redesignation of a nonattaiment area
				to an attainment area.
"Transportation control measure" (TCM) means a transportation
				project, program, or action listed in the state implementation plan that will
				aid in elimination or reduction of the severity or number of violations of the
				national ambient air quality standards and help expeditiously attain and
				maintain those standards.
"Transportation improvement program" (TIP) means a schedule of
				intended transportation improvements (or continuation of current activities) as
				required in section 134 of
				Title
				23 U.S.C. A TIP shall include
				projects within the MPO's area that are proposed for funding under
				Title
				23 U.S.C. and the federal
				Transit Act, projects that are part of or consistent with the transportation
				plan as previously defined, and transportation control measures that are
				included in the state implementation plan for meeting NAAQS.
"Transportation plan" means a document that is required under
				the regulation implementing section 134 of
				Title
				23 U.S.C., and section 8 of the
				federal Transit Act, and is intended to foster a continuing, cooperative, and
				comprehensive planning process.
"Transportation projects" means an action that expends funds on
				or approves physical and/or operational alterations to a transportation
				system.
Statutory Authority:
				  Chapter
				  70.94 RCW and  40 C.F.R.
				  Part 51  Subpart T. 95-18-022 (Order 94-31), § 173-420-040, filed 8/25/95,
				  effective 9/25/95. Statutory Authority:
				  Chapter
				  70.94 RCW and
				  RCW
				     70.94.037. 93-04-006 (Order 92-07), §
				  173-420-040, filed 1/22/93, effective
				  2/22/93.