StacksVerified U.S. regulatory reference

40 CFR §85.2207

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)A vehicle shall fail the OBD test if it is a 1996 or newer vehicle and the vehicle connector is missing, has been tampered with, or is otherwise inoperable.
  2. (b)A vehicle shall fail the OBD test if the malfunction indicator light (MIL) is commanded to be illuminated and it is not visually illuminated according to visual inspection.
  3. (c)A vehicle shall fail the OBD test if the MIL is commanded to be illuminated for one or more diagnostic trouble codes (DTCs), as described in 40 CFR 86.1806.