When a vehicle is smog tested in California, several components of its exhaust gas are measured. If the levels of those exhaust gas components are within limits (presumably established by California), the vehicle will pass (barring any other issues).
Exhaust gas components tested include: NMOG, NOx, CO, PC and HCHO. Where does California publish the limits for these exhaust gas components? I assume there must exist some published tables for a given make, model, engine and year.
For example, the limits for a 2014 GM Gen IV 5.3L Engine are:
NMOG: 0.070, NOx: .04, CO: 2.1. PC: 0.01, HCHO: 0.011
I "scraped" these limits from a California ARB Executive Order. There must be a state website that lists these limits, but I cannot find it.