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

Résumé

This Federal Register describes the certification of the Engelhard Corporation's ETX Plus rebuild kit pursuant to the Urban Bus Rebuild Requirements. The kit is certified to comply with the 0.10 grams per brake horsepower-hour (g/bhp-hr) particulate matter (PM) standard for certain engines (see below). EPA received a notification of intent to certify (that is, an "application" for) the ETX Plus rebuild kit, signed November 17, 1998, from the Engelhard Corporation (Engelhard) pursuant to Title 40 Code of Federal Regulations (CFR) part 85 subpart O, entitled "Urban Bus Rebuild Requirements." The kit applies to Detroit Diesel Corporation's (DDC) diesel-fueled 6V92TA urban bus engines of model years 1988 through 1993 that are equipped with the second version of Detroit Diesel Electronic Control (DDEC II). Engelhard's principal place of business is 101 Wood Avenue, Iselin, New Jersey 08830-0770. On April 29, 1999 EPA published a notice in the Federal Register (64 FR 23072) that the Engelhard application had been received, and that made the application available for public review and comment for a period of 45 days pursuant to 40 CFR 85.1407. EPA has completed its review and determined t