(a)
“Emissions retrofit device” means an exhaust device certified pursuant to Section 43630 or approved for use pursuant to Section 27156 of the Vehicle Code which renders a modified vehicle a low-emission motor vehicle, as defined by Section 43800.(b)
This section shall become inoperative five years from the date determined pursuant to Section 32 of the act adding this section, and on the January 1 following that date is repealed.
Source:
Section 39027.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=39027.5..