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The Air Resources Board invites you to attend a public workshop
on January 19, 2012 to discuss proposed amendments to the
Verification Procedure, Warranty, and In-Use Compliance
Requirements for In-Use Strategies to Control Emissions from
Diesel Engines (Verification Procedure) that will be presented to
the Board in May 2012.  

At the workshop, staff will discuss the proposed amendments to
the Verification Procedure which include the following:

•	Additional changes to the in-use compliance testing
requirements including when testing is required and the adoption
of an in-field testing option
•	Recall provisions
•	Changes to the pre-installation compatibility assessment
provisions including additional requirements for installers of
verified DECS
•	Clarification of the definition of a warrantable event and
warranty reporting requirements
•	Changes to the backpressure monitoring requirements for
filter-based DECS
•	Other changes and clarifications

The workshop will be held at the following time and place:
Date:		Thursday, January 19, 2012
Time:		11:00 a.m. to 2:00 p.m. (Pacific Time)
Location:	Air Resources Board 
Auditorium – Annex 4 
9528 Telstar Avenue 
El Monte, California 91731

For more information about the workshop, please go to:
http://www.arb.ca.gov/msprog/mailouts/msc1136/msc1136.pdf

For more information about the Verification Program, please go
to:
http://www.arb.ca.gov/diesel/verdev/verdev.htm

If you have any questions or require additional information,
please contact
Dean Bloudoff, Air Resources Engineer, at (916) 322-8987, or
via email at dbloudof@arb.ca.gov.

Background:  The Verification Procedure is used by staff to
evaluate diesel emission control strategies (DECS) to determine
their suitability for use by regulated fleets.  Under the
guidance of the Verification Procedure, DECS manufacturers
perform emissions, durability, and field testing to quantify
emissions reductions and validate the durability of their
retrofit strategies.  Manufacturers of verified DECS are required
to conduct in-use testing using devices that have been in
operation for a prescribed period of time once a predetermined
sales threshold has been reached.  Any DECS used to satisfy the
requirements of ARB’s in-use fleet rules must be verified under
the Verification Procedure.  



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