The Verification Procedure provides a way to thoroughly evaluate the PM emission reduction capabilities and durability of a variety of diesel emission control strategies as part of a retrofit in-use program. A number of criteria need to be considered when purchasing diesel exhaust retrofits known as "verified diesel emission control strategies" (DECS) or (VDECs) to comply with CARB diesel regulations. For additional information on selecting, installing and maintaining a DECS please visit the Heavy-Duty DECS Installation/Maintenance page.
Verification Procedure for In-Use Strategies to Control Emissions from Diesel Engines
The Verification Procedure, Warranty and In-Use Compliance Requirements for In-Use Strategies to Control Emissions from Diesel Engines (Verification Procedure) 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.
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Diesel Emission Control Strategies Verification Procedure
The verification program supports CARB's Diesel Risk Reduction Plan. All applicants should be aware that as part of the verification process, it is the applicant’s responsibility to provide data to verify emission reduction claims.