3 § 2452. Definitions. (a) "Air Contaminant" shall have the same meaning as set out in section 39013 of the Health and Safety Code. (b) "ARB" means the California Air Resources Board. (c) "Certified CompressionIgnition Engine" means an engine certified pursuant to 40 CFR Part 86, 40 CFR Part 89, 40 CFR Part 1039, 40 CFR Part 94, 40 CFR