The test procedures for determining compliance with these standards are those set forth in "California Exhaust Emission Standards, Test and Approval Procedures for Diesel Engines in 1973 and Subsequent Model-Year Vehicles Over 6,001 Pounds Gross Vehicle Weight," dated November 18, 1970, as last amended February 17, 1971.
In accordance with this section, as originally enacted, new 1973 model-year heavy-duty vehicles must contain 1973 model-year engines. In subsequent years, model-year engine controls, not model-year vehicle.
The test procedures for determining compliance with these standards are those set forth in "California Exhaust Emission Standards, Test and Approval Procedures for 1975 and Subsequent Model-Year Engines in Diesel-Powered Motor Vehicles Over 6,000 Pounds Gross Vehicle Weight," dated December 19, 1973, amended August 8, 1974.
or
These two sets of standards shall be alternatives. A manufacturer shall have the option for each engine family of showing compliance with either set.
The test procedures for determining compliance with these standards are those set forth in "California Exhaust Emission Standards and Test Procedures for 1975 and Subsequent Model-Year Diesel-Fueled Heavy-Duty Engines and Vehicles," dated December 19, 1973, as last amended March 31, 1976.
or
These two sets of standards shall be alternatives. A manufacturer shall have the option for each engine family of showing compliance with either set.
The test procedures for determining compliance with these standards are those set forth in "California Exhaust Emission Standards and Test Procedures for 1975 to 1978 Model-Year Diesel-Fueled Heavy-Duty Engines and Vehicles," dated December 19, 1973, as last amended October 5, 1976.
A manufacturer may elect to certify heavy-duty vehicles less than 10,000 pounds maximum gross vehicle weight rating as medium-duty vehicles under Section 1959 of this chapter, in which event heavy-duty emission standards and test procedures shall not apply.
Cal. Code Regs. Tit. 13, § 1957
Note: Authority cited: Sections 39600 and 39601, Health and Safety Code. Reference: Sections 39002, 39003, 43000, 43013, 43100, 43101 and 43104, Health and Safety Code.