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Exhaust Emissions

Any motor vehicle which is determined to emit quantities (rates) of CO and HC greater than those listed in Table I appropriate to model year and weight classification listed shall be FAILED and those with emission rates equal to or lower than the applicable amounts shall be PASSED under this subsection. [5-20-88]

Maximum Allowable Exhaust Emissions
Vehicle Model Year
Gross Vehicle Weight Rating (in pounds)
Group Code**

Idle Mode

HC PPM

Idle Mode

CO%

2500 RPM Test

HC PPM

2500 RPM Test

CO%

 1975-1978

0 to 6000

C/T

 500

5.0

500

 5.0

 1979-1980

0 to 6000

C/T

400

 4.0

400

 4.0

 1981-1985

0 to 6000

C/T

220

 1.2

220

1.2

1986-1990

0 to 6000

C/T

200

1.2

200

1.2

1991-1995

0 to 6000

C/T

180

1.2

180

1.2

             

1975-1978

6001 to 8000

LT

600

6.0

600

6.0

1979-1980

6001 to 8000

LT

600

4.5

600

4.5

1981-1982

6001 to 8500

LT

400

2.7

400

3.0

1983-1988

6001 to 8500

LT

300

1.2

300

3.0

1989-1995

6001 to 8500

LT

220

1.2

220

1.2

             

1975 -1980

8001 to 10,000

MT

650

6.5

650

6.5

1981-1990

8501 to 10,000

MT

400

4.0

400

3.0

1991-1995

8501 to 10,000

MT

220

2.0

220

2.0

             

1996-newer

All to be tested OBDII *

All

N/A

N/A

N/A

N/A

* Certain vehicles 1996 and newer which have been determined to be OBDII incompatible will be tested using the two speed idle test. The exhaust standard of 100 ppm HC and 1.0% CO at idle and 2500 RPM will be used for these OBDII incompatible vehicles.

** Group code: C = Car, T = Truck/Van, LT = Light Truck, MT = Medium Truck

Anti-tampering: Motor vehicles subject to this Part shall be inspected for the presence and proper connections of original design features and components designed to reduce CO and HC exhaust emissions.

Gas Cap (pressurized): All vehicles subject to inspection must pass a pressurized gas cap test to check the integrity of the gas cap seal. OBDII compliant vehicles that are at least four years old will also have a gas cap test performed. A failed gas cap will result in the vehicle failing the inspection.

Note: These criteria will be reviewed by the Board annually pursuant to the Urban Implementation Plan for Albuquerque/Bernalillo County. Adjustments will be promulgated as appropriate. [10-19-82...9-23-94]

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