The state board, in consultation with the bureau, shall establish smog index numbers for classes or categories of vehicles that may be modified by the use of an emissions retrofit device.
Cal. Health & Safety Code § 44252
Smog Index Numbers
Added by Stats. 1994, Ch. 1192, Sec. 31
Official source: California Legislative Information. Reproduced from public-domain California statutes; confirm against the official source for the current text. Not legal advice.