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Appendix A

13 CA ADC § 2025 App. ABarclays Official California Code of Regulations

Barclays California Code of Regulations
Title 13. Motor Vehicles (Refs & Annos)
Division 3. Air Resources Board
Chapter 1. Motor Vehicle Pollution Control Devices
Article 4.5
13 CCR § 2025 App. A
Appendix A
Table A-1 PM Emissions Factors by Engine Model Year (g/mile)
Engine Certification Standard Model Year
Medium Heavy-Duty Diesel Vehicle (MHD)
Heavy Heavy-Duty Diesel Vehicle (HHD)
Pre-1991
1.65
3.36
1991-1993
0.84
1.25
1994-2006
0.43
0.81
2007-2009*
0.06
0.11
2010 and newer*
0.06
0.11
*  If the engine is not equipped by the manufacturer with a diesel particulate filter, use the emission factor for the 1994-2006 model years
Table A-2 NOx Emissions Factors by Engine Model Year (g/mile)
Engine Certification Standard Model Year
Medium Heavy-Duty Diesel Vehicle (MHD)
Heavy Heavy-Duty Diesel Vehicle (HHD)
2003 and older
14.2
22.0
2004-2006
6.7
12.0
2007-2009
4.0
7.0
2010 and newer
0.8
1.6
This database is current through 7/5/24 Register 2024, No. 27.
Cal. Admin. Code tit. 13, § 2025 App. A, 13 CA ADC § 2025 App. A
End of Document