Section 43602 Of Article 1. Device Certification From California Health And Safety Code >> Division 26. >> Part 5. >> Chapter 3. >> Article 1.
43602
. An exhaust device certified by the state board pursuant to
Section 43601 shall not allow emissions exceeding any of the
following:
(a) 350 parts per million hydrocarbons.
(b) 2 percent carbon monoxide.
(c) 800 parts per million nitrogen oxide.
However, if no exhaust device meets all three of the maximums
specified in subdivisions (a), (b), and (c), the state board may
certify an exhaust device which meets any two of the three maximums
specified, if the installation of such a device in a motor vehicle
would not increase the other emission in excess of the emission of
that pollutant by the vehicle in the absence of such a device.
If two or more exhaust devices are certified that they meet the
requirements of this section, the state board may not require the
installation of more than one exhaust device on any motor vehicle.