Certification Procedure for Light-Duty and Heavy-Duty Diesel Vehicles and Heavy-Duty Diesel Engines CD-07-07

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Certification Procedure for Light-Duty and Heavy-Duty Diesel Vehicles and Heavy-Duty Diesel Engines CD-07-07

March 27, 2007 Letter to Manufacturer from Karl J. Simon, Acting Director, Compliance and Innovative Strategies Division, USEPA regarding Certification Procedure for Light-Duty and Heavy-Duty Diesel Vehicles and Heavy-Duty Diesel Engines Using Selective Catalyst Reduction (SCR) Technologies.

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Jul 9, 2026