CAN I DOWNLOAD EMISSIONS FACTORS FOR MOBILE SOURCES FROM THE INTERNET?
AP 42 Volume II: Mobile Sources is no longer maintained. More current mobile source emissions factors are available using the Office of Transportation and Air Quality (OTAQ) mobile source models. However, for reference purposes, OTAQ continues to post parts of the most recent mobile sources AP 42, Volume II on their web site. In particular, Appendix H is still useful in documenting the emissions factors produced by MOBILE5, and in some cases carried over into MOBILE6 without additional documentation.