MOJAVE DESERT AIR QUALITY MANAGEMENT DISTRICT
RULE 409 - COMBUSTION CONTAMINANTS
(Adopted: May 7, 1976)
A person shall not discharge into the atmosphere from the burning of fuel, combustion contaminants exceeding 0.23 gram per cubic meter (0.1 grain per cubic foot) of gas calculated to 12 percent of carbon dioxide (CO2) at standard conditions averaged over a minimum of 25 consecutive minutes.
The provisions of this rule shall not apply to jet engine test stands.