Class I area definition

Class I area means a mandatory visibility protection area designated pursuant to section 169A of the federal Clean Air Act.

Class I area means any prevention of significant deterioration area (i) in which virtually any deterioration of existing air quality is considered significant and (ii) designated as such in 9VAC5-20-205.

Class I area means any area designated pursuant to Sections 162 or 164 of the Federal Clean Air Act as a Class I area. The following areas are the Class I areas located within Washington state:

Examples of Class I area in a sentence

• The extent of a mandatory Class I area includes subsequent changes in boundaries, such as park expansions.

• This consultation must include the opportunity for the FLMs to discuss their assessment of impairment of visibility in any Class I area and to offer recommendations on the development of the RPGs and on the development and implementation of strategies to address visibility impairment.

• These exemptions shall be granted only when the attainment or maintenance of ambient air quality standards is not threatened, when there will be no significant impact on any Class I area, and when the imposition of requirements of this rule would be unreason- able.

• States must demonstrate in their SIPs how these factors are considered when selecting the RPGs for the best and worst days for each applicable Class I area.

• Such notifi- cation shall include an analysis of the proposed source’s anticipated impacts on visibility in the Federal Class I area.

More Definitions of Class I area

Class I area or “PSD Class I area” means any Federal, State or Indian reservation land which is classified or reclassified as a Class I area under OAR 340-204-0050 and 340-204-0060.

Class I area means any area designated under section 162 or 164 of the Federal Clean Air Act as a Class I area. The following areas are the Class I areas in Washington state:

Class I area means any area listed as Class I in 40 CFR Part 81 Subpart D, including Section 81.405, or an area otherwise specified as Class I in the legislation that creates a national monument, a national primitive area, a national preserve, a national recreational area, a national wild and scenic river, a national wildlife refuge,or a national lakeshore or seashore.

Class I area or "PSD Class I area" means any Federal, State, or Indian reservation land which is classified or reclassified as a Class I area under LRAPA title 29.

Class I area means any area designated under section 162 or 164 of the federal Clean Air Act (42 U.S.C., Sec. 7472 or 7474) as a Class I area. The following areas are the Class I areas in Washing- ton state:

Class I area means any area designated as Class I under Title I, Part C of the federal Clean Air Act. As of April 27, 2016, the Agua Tibia National Wilderness Area was the only area so designated within San Diego County. As of April 27, 2016, the following were the only designated Class I areas within 100 km of San Diego County (see Table 20.1-3): TABLE 20.1 - 3Class I AreasClass I AreaAgua Tibia Wilderness Area Cucamonga Wilderness Area Joshua Tree Wilderness Area San Gabriel Wilderness Area San Gorgonio Wilderness Area San Jacinto Wilderness AreaApproximate LocationSan Diego CountySan Bernardino County Riverside CountyLos Angeles County San Bernardino County Riverside County

Class I area means any one of the Arizona mandatory federal Class I areas defined in A.R.S. § 49-401.01.