Code of Colorado Regulations
1000 - Department of Public Health and Environment
1001 - Air Quality Control Commission
5 CCR 1001-13 - REGULATION NUMBER 11 MOTOR VEHICLE EMISSIONS INSPECTION PROGRAM
Part C - Inspection Procedures and Requirements for Exhaust Emissions, Fuel Evaporation Control, Visible Smoke Emissions, Emissions Control Systems, On-Board Diagnostics (OBD); and Practices to Ensure Proper Emissions Related Adjustments and Repairs
Section 5 CCR 1001-13-C-IV - ON-BOARD DIAGNOSTIC INSPECTION PROCEDURES

Current through Register Vol. 48, No. 6, March 25, 2025

Light-duty vehicles to include light-duty trucks of model year 1996 through those vehicles that have reached their eleventh model year old and model year 2008 and newer heavy duty vehicles with a GVW less than 14,000 pounds equipped with California on-board diagnostic (OBDII) or EPA on-board diagnostic systems (EPA, OBD) shall be evaluated to determine operability and integrity of the applicable system(s). The OBD system will be connected to the TAS and interrogated. Fault codes and diagnostics shall be reported to the motorist with other emissions inspection information but with the exception of dynamometer incompatible vehicles as noted in Part C, Section II.B.4. shall not be used to fail the vehicle.

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