Do I have to smog my diesel?
Diesel vehicles from 1998 and newer under 14,500 GVW are required to pass smog.
Quick Summary
Most newer diesel vehicles require smog testing.
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Answered by Sonny Baird
Last updated 1/16/2026, 3:07:53 PM
All 1998 and newer diesels under 14500 GVW require smog.
Sonny Baird
General Sales Manager, West Says Yes
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