Contignitron CARB EO numbers
Contignitron Company holds EO numbers starting D-1. We found 5 of them on CARB's site and read 5; 0 have a vehicle table we could read with certainty. Newest: August 1975.
Executive Orders
D-1-5August 1975 Equalizer MOD 4-V Other Engine Part · details in PDF D-1-4May 1975 Equalizer Model 4 (MOD IV) Other Engine Part · details in PDF D-1-3May 1975 MODEL 46", "MODEL 48" and "MODEL 48C Other Engine Part · details in PDF D-1-2February 1975 Model 4-8 Other Engine Part · details in PDF D-1-1March 1974 Model 46" AND "Model 48 Other Engine Part · details in PDFSource: CARB aftermarket parts EO PDFs (ww2.arb.ca.gov), retrieved November 11, 2026. Brand names are as written in the newest EO. Independent reference, not affiliated with CARB or Contignitron.