Motor vehicle
(9) Motor vehicleA self-propelled vehicle for use on the public roads and highways of the State of Arizona and required to be registered under the Arizona State Uniform Motor Vehicle Act, including any non-motorized attachments, such as, but not limited to, trailers or other conveyances which are connected to or propelled by the actual motorized portion of the vehicle. (10) Off-road motor vehicleany wheeled vehicle which is used off paved roadways and includes but is not limited to the following: (i) Any motor cycle or motor-driven cycle; (ii) Any motor vehicle commonly referred to as a sand buggy, dune buggy, or all terrain vehicle. (11) Owner/operatorany person who owns, leases, operates, controls, maintains or supervises a fugitive dust source subject to the requirements of this section. (12) PavingApplying asphalt, recycled asphalt, concrete, or asphaltic concrete to a roadway surface. (13) Phoenix PM-10 nonattainment areasuch area as defined in 40 CFR 81.303, excluding Apache Junction. (14) PM-10Particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers as measured by reference or equivalent methods that meet the requirements specified for PM-10 in 40 CFR part 50, Appendix J. (15) Reasonably available control measures (RACM)Techniques used to prevent the emission and/or airborne transport of fugitive dust and dirt. (16) Stabilized surface(i) Any unpaved road or unpaved parking lot surface where: (A) Any fugitive dust plume emanating from vehicular movement does not exceed 20 percent opacity as determined in section I.A of Appendix A of this section; and (B) Silt loading (weight of silt per unit area) is less than 0.33 ounces per square foot as determined by the test method in section I.B of Appendix A of this section OR where silt loading is greater than or equal to 0.33 ounces per square foot and silt content does not exceed six (6) percent for unpaved road surfaces or eight (8) percent for unpaved parking lot surfaces as determined by the test method in section I.B of Appendix A of this section. (ii) Any vacant lot surface with: (A) A visible crust which is sufficient as determined in section II.1 of Appendix A of this section; (B) A threshold friction velocity (TFV), corrected for non-erodible elements, of 100 cm/second or higher as determined in section II.2 of Appendix A of this section; (C) Flat vegetation cover equal to at least 50 percent as determined in section II.3 of Appendix A of this section; (D) Standing vegetation cover equal to or greater than 30 percent as determined in section II.4 of Appendix A of this section; or (E) Standing vegetation cover equal to or greater than 10 percent as determined in section II.4 of Appendix A of this section where threshold friction velocity, corrected for non-erodible elements, as determined in section II.2 of Appendix A of this section is equal to or greater than 43 cm/second. (17) Unpaved parking lotA privately or publicly owned or operated area utilized for parking vehicles that is not paved and is not a Low use unpaved parking lot. (18) Unpaved roadAny road, equipment path or driveway used by motor vehicles or off-road motor vehicles that is not paved which is open to public access and owned/operated by any federal, state, county, municipal or other governmental or quasi-governmental agencies. (19) Urban or suburban open areaAn unsubdivided or undeveloped tract of land adjoining a residential, industrial or commercial area, located on public or private property. (20) Vacant lotA subdivided residential, industrial, institutional, governmental or commercial lot which contains no approved or permitted buildings or structures of a temporary or permanent nature.