06- 096 C.M.R. ch. 146, § 4

Current through 2024-51, December 18, 2024

Section 096-146-4 - Prohibition

Diesel-powered motor vehicles shall not exceed the following:

A. For model years 1991 and newer, a level of peak smoke opacity of forty (40) percent;

B. For model years 1974 to 1990, a level of peak smoke opacity of fifty-five (55) percent; and

C. For model years 1973 and older, a level of peak smoke opacity of seventy (70) percent. This standard shall remain in effect until January 1, 2003. After January 1, 2003, model years 1973 and older shall be subject to the standard set forth in Subsection 4(B) of this Chapter.

06- 096 C.M.R. ch. 146, § 4