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Posted: 15 May 2017 11:09:19
The California Air Resources Board (ARB) invites you to
participate in a webinar on Thursday, June 1, 2017 to discuss
updates to the on-road component of the mobile source emission
inventory.  At the webinar, staff will summarize updates that
have been made to EMFAC and present updated methodologies from
the upcoming EMFAC2017 model.  This will be the first public
workshop to discuss the development of the EMFAC2017 model.  

This meeting will be conducted through the GoToWebinar online
webinar system and questions from participants will be taken
using the webinar software. This event will also be recorded and
made available on the ARB web site.  Information on how to
register for this workshop will be sent out on this listserv at
least one week prior to the workshop date.

Webinar Information and Background

The past several decades have seen dramatic improvements in air
quality as a result of regulations that have reduced emissions
from stationary and mobile sources.  However, substantial
additional emissions reductions will be necessary to meet more
stringent ozone air quality standards and California’s long-term
greenhouse gas emissions reduction goals.  ARB is expanding its
mobile source analysis tools to support air quality planning
focused on achieving these goals.  

The EMFAC model is the primary tool ARB uses to assess emissions
from on-road vehicles including cars, trucks, and buses. This
public webinar workshop will discuss the development of the
upcoming EMFAC2017 version of the model. At the webinar, staff
will provide a description of the methodologies incorporated and
updates made to the model.  A subsequent workshop in the Fall
will cover model estimates and explain differences between the
new estimates and those from the prior version of the model,

Special Accommodations or Language Assistance

If you require special accommodations or need this document in an
alternative format (i.e., Braille, large print) or another
language, please contact Mr. Stephen Zelinka at (916) 445-2199,
or stephen.zelinka@arb.ca.gov as soon as possible, but no later
than 10 business days before the scheduled workshop. 
TTY/TDD/Speech to Speech users may dial 711 for the California
Relay Service.

If you did not receive this notice directly and would like to
receive notices to stay informed of future updates to mobile
source emissions inventory tools, please sign up for the “MSEI”
listserve at: 

If you have any questions, please contact Mr. Stephen Zelinka at
(916) 445-2199, or stephen.zelinka@arb.ca.gov

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