SAN JOAQUIN VALLEY UNIFIED AIR POLLUTION CONTROL DISTRICT

RULE 2303 - MOBILE SOURCE EMISSION REDUCTION CREDITS
(Adopted May 19, 1994)

1.0 Purpose

The purpose of this rule is to encourage joint business ventures and establish procedures by which emission reduction credits from mobile sources may be certified.

2.0 Applicability

The provisions of this rule apply to the banking of any mobile source emission reduction credits generated and in the District.

3.0 Definitions

4.0 Eligible Emission Reduction Strategies

Table 1

Emission Rates (gram/mile) Used to Calculate the Emission Reduction Benefits from

Accelerated Retirement Programs

Model - Year

Group

ROGexhaust

ROGevap.

NOx

CO

Pre-1972

9.6

2.8

4.0

69.5

1972-1974

7.6

2.1

3.8

46.4

1975-1981

2.6

1.3

3.0

36.1

1982-1992

0.6

0.3

0.9

10.1

1993

0.2

0.1

0.4

3.3

Fleet Average

1.0

0.4

1.2

13.6

Table 2

Average Annual Mileage of Model-Year Groups

Model-Year Group

Annual Mileage

Pre-1972

4,900

1972-1974

5,300

1975-1981

6,400

1982-1992

11,000

1993

14,500

Fleet Average

10,100

Table 3

Urban Bus NOx Certification Standards (gm/bhp-hr)

Type

Current

Standard Bus

5.0

(4.0 projected in 1996)

Low-Emission Bus

3.5

" "

3.0

" "

2.5

" "

2.0

" "

1.5

" "

1.0

" "

0.5

" "

0

Table 4

Emission Conversion Factors for New Buses

Fuel

Bhp-hr/mile

Diesel

4.3

Methanol

4.3

Compressed Natural Gas

4.1

Table 5

Emissions from a Baseline Vehicle for Each Calendar Year

Model-Year

Ex+RL NMOG1

(gram/mile)

Evap NMOG2

(gram/day)

NOx

(gram/mile)

CO

(gram/mile)

1996

0.41

2.0

0.60

2.9

1997

0.28

1.7

0.52

2.7

1998

0.22

0.91

0.44

2.5

1999

0.17

0.91

0.36

2.3

2000

0.11

0.91

0.30

2.1

2001

0.11

0.91

0.29

2.1

2002

0.11

0.91

0.29

2.1

2003

0.10

0.91

0.28

1.9

1Exhaust plus running loss emissions.

2Evaporative emissions.

Table 6

Certification Standards for Passenger Cars and Light-Duty Trucks With Gross Vehicle Weights of 3750 Pounds or Less (grams/mile)

Category

NMOG

CO

NOx

Adopted for 1993

0.25

3.4

0.4

TLEV

0.125

3.4

0.4

LEV

0.075

3.4

0.2

ULEV

0.040

1.7

0.2

Table 7

Certification Standards for Light-Duty Trucks With Gross Vehicle Weights of More Than 3750 Pounds (grams/mile)

Category

NMOG

CO

NOx

Adopted for 1993

0.50

9.0

1.0

TLEV

0.16

4.4

0.7

LEV

0.100

4.4

0.4

ULEV

0.050

2.2

0.4

Table 8

Certification Standards for Medium-Duty Vehicles (grams/mile)

Weight

Class (lbs)

LEV

ULEV

NMOG

CO

NOx

NMOG

CO

NOx

0-3,750

0.125

3.4

0.4

0.075

1.7

0.2

3,751-5,750

0.160

4.4

0.7

0.100

2.2

0.4

5,751-8,500

0.195

5.0

1.1

0.117

2.5

0.6

8,501-10,000

0.230

5.5

1.3

0.138

2.8

0.7

10,001-14,000

0.300

7.0

2.0

0.180

3.5

1.0

Table 9

Total Vehicle Mileage and Typical Useful Life of Vehicles

Category

Total Vehicle Mileage (miles)

Typical Useful Life (years)

Passenger Cars

100,000

10

Light-Duty Trucks

100,000

10

Medium-Duty Vehicles

120,000

10

5.0 MSERC Application Procedures

6.0 Administrative Requirements