BAR-97 Emissions Inspection System
The BAR-97 Emissions Inspection System (EIS) inspects vehicles under simulated driving conditions to detect oxides of nitrogen (NOx), hydrocarbons (HC), and carbon monoxide (CO) emissions.
Model-year 1999 and older gasoline vehicles, any model year gasoline vehicle not equipped with OBD II, and any model year gasoline vehicle over 14,000 GVWR require inspection on the BAR-97 EIS.
For information on BAR-97 EIS inspection requirements, refer to the Smog Check Manual.
Certified Equipment, Parts, and Gases
- BAR-97 EIS Systems and Components
- Aftermarket Parts
- Gas Blender Facilities
- Certification Requirements
- BAR-97 EIS Specification (July 2017)
Gas Cap Adapters
Fuel cap functional tests are required to be performed only on 1995 and older model year vehicles as part of a BAR-97 EIS inspection. Stations performing BAR-97 EIS inspections on these vehicles are required to maintain the following fuel cap adapters for use when completing fuel cap functional tests:
- Blue 12403
- Yellow 12404
- Red with white ring 12405
- Green 12406
- Black with white ring 12407
- Gray 12408
- Pink 12426
- Red FPT25-1
- Gray FPT25-2
- Yellow FPT25-3
- Black FPT25-4
- Green FPT25-5