The California plan was evaluated on the basis of the following classifications: ----------------------------------------------------------------------------------------------------------------
Pollutant
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Air quality control region Photochemical
Particulate Sulfur Nitrogen Carbon oxidants
matter oxides dioxide monoxide (hydrocarbons)----------------------------------------------------------------------------------------------------------------North Coast Intrastate............................... II III III III IIISan Francisco Bay Area Intrastate.................... II II III I INorth Central Coast Intrastate....................... II III III III ISouth Central Coast Intrastate....................... III III III III IIIMetropolitan Los Angeles Intrastate.................. I II I I INortheast Plateau Intrastate......................... III III III III IIISacramento Valley Intrastate......................... II III III I ISan Joaquin Valley Intrastate........................ I III III I IGreat Basin Valley Intrastate........................ III III III III IIISoutheast Desert Intrastate.......................... I III III III ISan Diego Intrastate................................. II III III I ILake County Intrastate............................... II III III III IIILake Tahoe Intrastate................................ II III III I IMountain Counties Intrastate......................... II III III I I---------------------------------------------------------------------------------------------------------------- [37 FR 10850, May 31, 1972, as amended at 39 FR 16346, May 8, 1974; 46 FR 3884, Jan. 16, 1981]