Cal. Code Regs. tit. 13, § 1955.1
(a) The exhaust emissions from new 1975 through 1978 model-year gasoline-fueled passenger cars having an engine displacement of 50 cubic inches or greater, subject to registration and sold and registered in this state, shall not exceed:
Exhaust Emission Standards (grams per mile)
Model Year
Hydrocarbons
Carbon Monoxide
Oxides of Nitrogen
1975
0.9*
9.0
2.0
1976
0.9*
9.0
2.0
1977
0.41
9.0
1.5
1978
0.41
9.0
1.5
* Hydrocarbon emissions from limited-production passenger cars shall not exceed 1.5 grams per mile.
Note: Authority cited: Sections 39600 and 39601, Health and Safety Code. Reference: Sections 39002, 39003, 43000, 43100 and 43104, Health and Safety Code.