Planning Program  

Approved models list

The District requires that all CEQA, NEPA and other modeling use the latest ARB approved      version, or alternatives designated by the Air Pollution Control Officer.

As of this writing (06/07) the District is requiring the use of the following models-

URBEMIS 9.x

EMFAC 2007 (for SIP compliance other versions are acceptable, however only with prior written approval)

All other models shall be the latest approved ARB version

Please contact the District via email or phone (707) 463-4354 with any questions