Retrofit/Rebuild Requirements for 1993 and Earlier Model Year Urban Buses; Approval of a Notification of Intent To Certify Equipment

الملخص

The Agency received a notification of intent to certify equipment signed March 16, 1995, and with cover letter dated April 11, 1995, from the Detroit Diesel Corporation (DDC) with principal place of business at 13400 Outer Drive, West; Detroit, Michigan, 48239, for certification of urban bus retrofit/rebuild equipment pursuant to 40 CFR Sections 85.1401-85.1415. The equipment is applicable to Detroit Diesel Corporation's (DDC) petroleum-fueled 6V92TA model engines having mechanical unit injectors (MUI) that were originally manufactured between January 1979 and December 1989. On June 5, 1995, EPA published a notice in the Federal Register that the notification had been received and made the notification available for public review and comment for a period of 45-days (60 FR 29590). EPA has completed its review of this notification, and the comments received, and the Director of the Manufacturers Operations Division has determined that it meets all the requirements for certification. Accordingly, EPA approves the certification of this equipment effective October 2, 1995. The certified equipment provides 25 percent or greater reduction in exhaust emissions of particulate matter (PM) fo