Health and Safety Code § 44252
CHAPTER 8. Smog Index Numbers
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.
CHAPTER 8. Smog Index Numbers
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.