Retrofit/Rebuild Requirements for 1993 and Earlier Model Year
Urban Buses; Public Review of a Notification of Intent to Certify
Equipment
[Federal Register: December 13, 1995 (Volume 60, Number 239)]
[Notices]
[Page 64048-64051]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
ENVIRONMENTAL PROTECTION AGENCY
[FRL-5344-7]
Retrofit/Rebuild Requirements for 1993 and Earlier Model Year
Urban Buses; Public Review of a Notification of Intent to Certify
Equipment
AGENCY: Environmental Protection Agency.
ACTION: Notice of agency receipt of a notification of intent to certify
equipment and initiation of 45 day public review and comment period.
SUMMARY: The Agency has received a notification of intent to certify
urban bus retrofit/rebuild equipment pursuant to 40 CFR Part 85,
Subpart O. Pursuant to Sec. 85.1407(a)(7), today's Federal Register
notice summarizes the notification below, announces that the
notification is available for public review and comment, and initiates
a 45-day period during which comments can be submitted. The Agency will
review this notification of intent to certify, as well as comments
received, 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.
The Johnson Matthey, Inc. (JMI) notification of intent to certify,
as well as other materials specifically relevant to it, are contained
in category XI-A of Public Docket A-93-42, entitled ``Certification of
Urban Bus Retrofit/Rebuild Equipment''. This docket is located at the
address below.
Today's notice initiates a 45 day period during which the Agency
will accept written comments relevant to whether or not the equipment
included in this notification of intent to certify should be certified.
Comments should be provided in writing to Public Docket A-93-42,
Category XI-A, at the address below. An identical copy should be
submitted to Anthony Erb, also at the address below.
DATES: Comments must be submitted on or before January 29, 1996.
ADDRESSES: Submit separate copies of comments to each of the two
following addresses:
U.S. Environmental Protection Agency, Public Docket A-93-42
(Category XI--A), Room M-1500, 401 M Street S.W., Washington, DC 20460.
[[Page 64049]]
2. Anthony Erb, Engine Compliance Programs Group, Engine Programs and
Compliance Division (6405J), 401 ``M'' Street S.W., Washington, DC
20460.
The JMI notification of intent to certify, as well as other
materials specifically relevant to it, are contained in the public
docket indicated above. Docket items may be inspected from 8:00 a.m.
until 5:30 p.m., Monday through Friday. As provided in 40 CFR Part 2, a
reasonable fee may be charged by the Agency for copying docket
materials.
FOR FURTHER INFORMATION CONTACT: Anthony Erb, Engine Compliance and
Programs Division (6405J), U.S. Environmental Protection Agency, 401 M
Street S.W., Washington, DC 20460. Telephone: (202) 233-9259.
SUPPLEMENTARY INFORMATION:
I. Background
On April 21, 1993, the Agency published final Retrofit/Rebuild
Requirements for 1993 and Earlier Model Year Urban Buses (58 FR 21359).
The retrofit/rebuild program is intended to reduce the ambient levels
of particulate matter (PM) in urban areas and is limited to 1993 and
earlier model year (MY) urban buses operating in metropolitan areas
with 1980 populations of 750,000 or more, whose engines are rebuilt or
replaced after January 1, 1995. Operators of the affected buses are
required to choose between two compliance options: Program 1 sets
particulate matter emissions requirements for each urban bus engine in
an operator's fleet which is rebuilt or replaced; Program 2 is a fleet
averaging program that establishes specific annual target levels for
average PM emissions from urban buses in an operator's fleet.
A key aspect of the program is the certification of retrofit/
rebuild equipment. To meet either of the two compliance options,
operators of the affected buses must use equipment which has been
certified by the Agency. Emissions requirements under either of the two
compliance options depend on the availability of retrofit/rebuild
equipment certified for each engine model. To be used for Program 1,
equipment must be certified as meeting a 0.10 g/bhp-hr PM standard or
as achieving a 25 percent reduction in PM. Equipment used for Program 2
must be certified as providing some level of PM reduction that would in
turn be claimed by urban bus operators when calculating their average
fleet PM levels attained under the program. For Program 1, information
on life cycle costs must be submitted in the notification of intent to
certify in order for certification of the equipment to initiate (or
trigger) program requirements. To trigger program requirements, the
certifier must guarantee that the equipment will be available to all
affected operators for a life cycle cost of $7,940 or less at the 0.10
g/bhp-hr PM level, or for a life cycle cost of $2,000 or less for the
25 percent or greater reduction in PM. Both of these values are based
on 1992 dollars.
II. Notification Of Intent To Certify
By a notification of intent to certify signed September 6, 1995,
Johnson Matthey, Inc. (JMI) has applied for certification of equipment
applicable to all Detroit Diesel Corporation (DDC) two-cycle engines
originally equipped in an urban bus from model year 1979 to model year
1993, exclusive of the DDC 6L71TA 1990 model year engines (see Table
A). The notification of intent to certify states that the equipment
being certified is a catalytic exhaust muffler (CEM). The CEM contains
an oxidation catalyst developed specifically for diesel applications,
packaged as a direct replacement for the muffler. The application
states that the candidate equipment provides a 25 percent or greater
reduction in emissions of particulate matter (PM) for petroleum fueled
diesel engines relative to an original engine configuration with no
after treatment installed. The engines may either be rebuilt to
original specifications, or not rebuilt but able to meet specified
engine calibrations. A 25 percent reduction is also claimed for engines
that have been retrofit/rebuilt with certified new rebuild kits that do
not include after treatment devices. The latter would apply to the DDC
retrofit/rebuild kit which was certified on October 2, 1995 (60 FR
51472).
Table A.--Certification Levels
PM Level <SUP>1
6V92TA........................ 1979-87.......... 0.38 All.............. All.
MUI
1988-1989........ 0.23 All.............. All.
6V92TA........................ 1986-89.......... 0.23 All.............. All
DDEC I
6V92TA........................ 1988-91.......... 0.23 All.............. All.
DDEC II
1992-93.......... 0.19 All.............. All.
6V71N......................... 1973-87.......... 0.38 All.............. All.
6V71N......................... 1988-89.......... 0.38 All.............. All.
6V71T......................... 1985-86.......... 0.38 All.............. All.
8V71N......................... 1973-84.......... 0.38 All.............. All.
6L71TA........................ 1988-89.......... 0.23 All.............. All.
6LV71TA....................... 1990-91.......... 0.23 All.............. All.
DDEC
8V92TA........................ 1979-87.......... 0.40 All.............. 8V92TA
1988............. 0.29 All.............. 8V92TA
8V92TA-DD..................... 1988............. 0.31 ALL.............. 8V92TA-
DDEC II
9
9
9
DDEC 4
9
DDEC 3
DDEC 2
DDEC 1 &
PDD0736FZH
X
DDEC 1 &
PDD0736FZH
X
DDEC 1 &
PDD0736FZH
X
DDEC 1 &
PDD0736FZH
X
from the original certification levels.
Baseline Engine Percent
engine with CEM reduction
Smoke:
Baseline Engine Percent
engine with CEM reduction
Smoke:
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