Approval Details

Valid E.O.


This Executive Order approved the specified parts on on January 21, 1999.
As of Tuesday, May 21st, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1985-1990 model-year Detroit Diesel Corporation (DDC) 6V92TA DDEC urban bus engines with power ratings of 253 and 277 horsepowerThe DDEC Engine Upgrade Kit rebuilds diesel-powered 1985-1990 model-year 6V92TA DDEC urban bus engines to meet California's 1991 model-year heavy-duty diesel urban bus engine emission standards of 0.10 grams per brake-horsepower-hour (g/bhp-hr) particulate matter (PM) and 5.0 g/bhp-hr oxides of nitrogen (NOx). The DDEC Engine Upgrade Kit consists of three kits: 1) engine rebuild kit - newly manufactured parts, 2) engine rebuild kit - reliabilt parts, and 3) converter/muffler kit. The newly manufactured parts kit consists of a gasket kit, air inlet hose, blower drive gear (2.05 to 1), blower by-pass valve assembly, cylinder kits (piston assemblies and cylinder liners), new electronic-unit fuel injectors, and DDEC II to DDEC III conversion kits. The reliabilt parts kit consists of remanufactured camshafts, blower assembly, turbocharger, and head assemblies. The converter/muffler kit consists of a direct-replacement oxidation catalyst supplied by Nelson, Engine Control Systems, or Engelhard. One of each type kit is required for the rebuild of an engine.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-202-1
  • Executive Order 202-1 / D202-1
  • ARB # D-202-1
  • Executive Order No: D-202-1
  • C.A.R.B. No. D-202-1
  • Resolution D-202-1
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-202-1 PDF

D-202-1 Document:

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