Comment submitted by P. Rives

Document ID: EPA-HQ-OAR-2006-0886-0004
Document Type: Public Submission
Agency: Environmental Protection Agency
Received Date: November 26 2006, at 12:02 AM Eastern Standard Time
Date Posted: November 27 2006, at 12:00 AM Eastern Standard Time
Comment Start Date: November 15 2006, at 12:00 AM Eastern Standard Time
Comment Due Date: December 15 2006, at 11:59 PM Eastern Standard Time
Tracking Number: 801e5310
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This is comment on Notice

Draft Certification Procedures for Light-Duty Diesel Vehicles and Heavy-Duty Diesel Engines Using Selective Catalyst Reduction (SCR) Technologies for Public Comment

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Adding a separate agent to help NOx emissions would be helpful. If the tank gets empty, a check engine light should come on. This should be the limit of compliance other than any consequence in driveability and perhaps a backup mode that would limit emissions by default until the agent is replenished. Thank you. Peter Rives

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Comment submitted by Andrew A. Pouring, CEO and Chief Technical Officer, Sonex Research, Inc.
Public Submission Posted: 11/20/2006 ID: EPA-HQ-OAR-2006-0886-0003