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

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NOPEC Corporation has submitted to EPA a notification of intent to certify urban bus retrofit/rebuild equipment pursuant to 40 CFR part 85, subpart O. The notification describes equipment consisting of biodiesel fuel additive in combination with a particular exhaust system catalyst. Pursuant to section 85.1407(a)(7), today's Federal Register document summarizes the notification, announces that the notification is available for public review and comment, and initiates a 45-day period during which comments can be submitted. EPA will review this notification of intent to certify, as well any comments it receives, to determine whether the equipment described in the notification of intent to certify should be certified. If certified, the equipment can be used by urban bus operators to reduce the particulate matter of urban bus engines as discussed below. The candidate equipment is identical to equipment supplied by Twin Rivers Technologies, Limited Partnership, and which was previously certified as described in the Federal Register on October 22, 1996 (61 FR 54790). The NOPEC notification of intent to certify, as well as other materials specifically relevant to it, are contained in cate