This page last reviewed December 7, 2007.

The Regulation for the Verification Procedure for In-Use Strategies to Control Emissions from Diesel Engines was created and adopted by our Board on May 16, 2002. The goal of the Verification Procedure is to ensure real emission reductions, along with an emission control system that is durable and compatible with various engines and applications.Within this process, it is the responsibility of the diesel emission control strategies manufacturer to provide data to verify emission reduction claims.

Important Dates & Information:

January 24, 2008
The Air Resources Board will hold a public hearing January 24, 2008 and consider the proposed amendments to the Verification Procedure, Warranty and In-Use Compliance Requirements for In-Use Strategies to Control Emissions from Diesel Engines.  The proposed amendments include, but are not restricted to, conditional extensions for certain diesel emission control strategies (DECS), new transient testing requirements for DECS for off-road applications, and new requirements for DECS that control oxides of nitrogen.  The public hearing notice and Initial Statement of Reasons are located at the following link:
www.arb.ca.gov/regact/2008/verdev2008/verdev2008.htm

July 31, 2007
Workshop Announcement regarding amendments to the Verification Procedure, Warranty and In-Use Compliance Requirements for In-Use Strategies to Control Emissions from Diesel Engines. Proposed Changes | Presentation Multimedia Assessment
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