Ill. Admin. Code tit. 35, § 240.141 - Smoke Opacity Standards and Test Procedures for Diesel-Powered Heavy Duty Vehicles
a)
Diesel-powered heavy duty vehicles described in Section
240.140 of this
Subpart are subject to the following smoke opacity standards:
1) Diesel-powered heavy duty vehicles that
are model year 1991 or newer must not exceed forty percent peak smoke opacity
when tested in accordance with subsection (b) of this Section.
2) Except as set forth in subsection (a)(3)
of this Section, diesel-powered heavy duty vehicles that are model year 1990 or
older must not exceed fifty-five percent peak smoke opacity when tested in
accordance with subsection (b) of this Section.
3) Until December 31, 2002, diesel-powered
heavy duty vehicles that are model year 1973 or older must not exceed seventy
percent peak smoke opacity when tested in accordance with subsection (b) of
this Section. Beginning on January 1, 2003, diesel-powered heavy duty vehicles
that are model year 1973 or older must not exceed fifty-five percent peak smoke
opacity when tested in accordance with subsection (b) of this
Section.
b) Test
procedures and equipment for measuring peak smoke opacity from diesel-powered
heavy duty vehicles must be in accordance with the Society of Automotive
Engineer's (SAE) Recommended Practice J1667, "Snap-Acceleration Smoke Test
Procedure for Heavy-Duty Diesel Powered Vehicles," (February 1996),
incorporated by reference in Section
240.107
of this Part.
Notes
Amended at 23 Ill. Reg. 3680, effective February 23, 2001
BOARD NOTE: The Illinois Department of Transportation also addresses the use of diesel smoke test procedures in 92 Ill. Adm. Code 460.
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
No prior version found.