Federal Register / Vol. 63, No. 93 /Thursday, May 14, 1998 / Notices 26795

II. Information Collection

EPA is seeking comments on the

following ICR, as well as the Agency’s

intention to renew the corresponding

OMB approval, which is currently

scheduled to expire on August 31, 1998.

Title: Collection of Economic and

Program Support Data; Request for

Generic Clearance.

ICR numbers: EPA ICR No. 1170.06,

OMB No. 2070–0032.

Abstract: Staff of EPA’s Office of

Pollution Prevention and Toxics (OPPT)

are obliged to provide a wide array of

analyses in support of Agency activities.

These analyses allow OPPT staff to

provide statistically valid information to

assist in the development of regulations

and voluntary activities that minimize

costs and maximize net societal

benefits. While some questions can be

answered satisfactorily through

information that EPA has in its

possession or through existing

secondary sources of data, there are

others for which no relevant sources

exist. Moreover, much of the work

OPPT does requires information in a

timely manner. Because of various

pressures, the Agency often has to make

decisions quickly. The ability for OPPT

to collect information in relatively short

periods to support such decisions is

essential in ensuring that EPA makes

sound decisions.

OPPT is required, through statute, to

consider the economic impacts of

actions taken to control the

manufacture, distribution, processing,

use, or disposal of chemical substances

or mixtures that present unreasonable

risks of injury to human health or the

environment. OPPT uses cost-benefit

analyses to determine that a proposed

regulatory action maximizes the net

benefits to society when compared to

the alternatives. Given the record

regarding the lack of publicly available

information on many chemicals, and

other situations that arise during the

course of determining regulatory

options, an information collection

activity often is required to collect the

needed data. OPPT and other EPA staff

then use these data to evaluate the

regulatory options available, to

determine the impact of a specific

program, or to develop non-regulatory,

voluntary options.

Responses to this collection of

information are voluntary.

Burden statement: The burden to

respondents for complying with this ICR

is estimated to total 6,000 hours per year

with an annual cost of $490,000. These

totals are based on an average burden of

1.5 hour per response for an estimated

4,000 respondents making one or more

responses annually. These estimates

include the time needed to determine

applicability; review instructions;

develop, acquire, install and utilize

technology and systems for the purposes

of collecting, validating and verifying

information, processing and

maintaining information, and disclosing

and providing information; adjust the

existing ways to comply with any

previously applicable instructions and

requirements; train personnel to be able

to respond to a collection of

information; search data sources;

complete and review the collection of

information; and transmit or otherwise

disclose the information.

III. Public Record and Electronic

Submissions

The official record for this document,

as well as the public version, has been

established for this document under

docket control number ‘‘OPPTS–00239’’

(including comments and data

submitted electronically as described

below). A public version of this record,

including printed, paper versions of

electronic comments, which does not

include any information claimed as CBI,

is available for inspection from 12 noon

to 4 p.m., Monday through Friday,

excluding legal holidays. The official

rulemaking record is located in the

TSCA Nonconfidential Information

Center, Rm. NE–B607, 401 M St., SW.,

Washington, DC.

Electronic comments can be sent

directly to EPA at:

oppt.ncic@epamail.epa.gov

Electronic comments must be

submitted as an ASCII file avoiding the

use of special characters and any form

of encryption. Comments and data will

also be accepted on disks in

WordPerfect 5.1/6.1 or ASCII file

format. All comments and data in

electronic form must be identified by

the docket control number ‘‘OPPTS–

00239’’ and administrative record

number 196. Electronic comments on

this document may be filed online at

many Federal Depository Libraries.

List of Subjects

Environmental protection,

Information collection requests,

Reporting and recordkeeping.

Dated: May 6, 1998.

Lynn R. Goldman,

Assistant Administrator for Prevention,

Pesticides and Toxic Substances.

[FR Doc. 98–12854 Filed 5–13–98; 8:45 am]

BILLING CODE 6560–50–F

ENVIRONMENTAL PROTECTION

AGENCY

[FRL–6013–7]

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 (EPA).

ACTION: Notice of Agency receipt of a

notification of intent to certify

equipment and initiation of 45-day

public review and comment period.

SUMMARY: Johnson Matthey

Incorporated (JM) has submitted to EPA

a notification of intent to certify urban

bus retrofit/rebuild equipment pursuant

to 40 CFR Part 85, Subpart O. The

equipment, referred to by JM as the Cam

Converter Technology (CCTTM) upgrade

kit, consists of proprietary cam shafts, a

CEM IITM catalytic exhaust muffler

containing an oxidation catalyst,

specified engine rebuild parts, and a set

of instructions. The candidate kit is

applicable to all Detroit Diesel

Corporation (DDC) 6V92TA DDEC twocycle urban bus diesel engines from

model years 1985 to 1993 with power

ratings of 253 and 277 horsepower (hp).

JM intends this equipment to be

certified to the particulate matter

standard of 0.10 grams per brakehorsepower-hour (g/bhp-hr). JM has not

submitted life cycle cost information

and does not intend that certification of

the equipment trigger (initiate) any new

program requirements for urban bus

operators.

Pursuant to § 85.1407(a)(7), today’s

Federal Register notice 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

as 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.

The notification of intent to certify, as

well as other materials specifically

relevant to it, are contained in Category

XXI–A of Public Docket A–93–42,

entitled ‘‘Certification of Urban Bus

Retrofit/Rebuild Equipment’’. This

docket is located at the address listed

below.

Today’s notice initiates a 45-day

period during which EPA will accept

written comments relevant to whether

or not the equipment included in this
26796 Federal Register / Vol. 63, No. 93 /Thursday, May 14, 1998 / Notices

notification of intent to certify should be

certified. Comments should be provided

in writing to the addresses below.

DATES: Comments must be submitted on

or before June 29, 1998.

ADDRESSES: Submit separate copies of

comments to each of the two following

addresses:

1. U.S. Environmental Protection

Agency, Public Air Docket A–93–42

(Category XXI–A), Room M–1500, 401

M Street S.W., Washington, DC 20460.

2. William Rutledge, Engine

Compliance Programs Group, Engine

Programs and Compliance Division

(6403J), U.S. Environmental Protection

Agency, 401 ‘‘M’’ Street S.W.,

Washington, DC 20460.

The JM 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 EPA for copying docket materials.

FOR FURTHER INFORMATION CONTACT:

William Rutledge, Engine Programs and

Compliance Division (6403J), U.S.

Environmental Protection Agency, 401

M St. SW, Washington, D.C. 20460.

Telephone: (202) 564–9297.

SUPPLEMENTARY INFORMATION:

I. Program Background

On April 21, 1993, EPA 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: Option 1

establishes particulate matter emissions

requirements for each urban bus engine

in an operator’s fleet which is rebuilt or

replaced; Option 2 is a fleet averaging

program that establishes a specific

annual target level for average PM

emissions from urban buses in an

operator’s fleet.

A key aspect of the program is

certification of retrofit/rebuild

equipment, which begins when an

equipment manufacturer submits an

application for certification (referred to

in the rule as a notification of intent to

certify). To meet either of the two

compliance options, operators of the

affected buses must use equipment that

has been certified by EPA. Emissions

requirements under either of the two

options depend on the availability of

retrofit/rebuild equipment certified for

each engine model. To be used for

Option 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 Option 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.

Under Option 1, additional

information regarding cost must be

submitted in the notification, in order

for certification of that equipment to

initiate (or trigger) program

requirements for a particular engine

model. In order for the equipment to

serve as a trigger, the certifier must

guarantee that the equipment will be

offered to affected operators for $7,940

or less at the 0.10 g/bhp-hr PM level, or

for $2,000 or less for the 25 percent or

greater reduction in PM. Both of the

above amounts are based on 1992

dollars and include life cycle costs

incremental to the cost of a standard

rebuild.

II. Notification of Intent To Certify

In a notification of intent to certify

equipment signed March 6, 1998,

Johnson Matthey (JM) applied for

certification of equipment under the

Environmental Protection Agency’s

(EPA) Urban Bus Retrofit/Rebuild

Program. The candidate kit is applicable

to 6V92TA DDEC urban bus engine

models made by Detroit Diesel

Corporation (DDC) from model years

1985 to 1993 with power ratings of 253

and 277 hp. The notification states that

the candidate equipment achieves a

particulate matter (PM) level of 0.10

g/bhp-hr.

The equipment, referred to as the Cam

Converter Technology (CCTTM) upgrade

kit, consists of a CEM IITM catalytic

exhaust muffler, proprietary cam shafts,

turbocharger, piston dome kits, piston

skirts, ring sets, cylinder liners, blower

drive gear, blower assembly, blower

bypass valve, rebuilt fuel injectors, and

offset key. The CCTTM kit would be

available in two horsepower levels (253,

and 277) for 6V92TA DDEC engines.

The CEM II is a diesel oxidation

catalyst that is the same size and shape

as the CEMTM. However, JM states that

the CEM IITM contains a catalyst with a

different formulation than the original

CEM, and the CCTTM kit cannot be used

with the previously certified CEMTM in

place of the new CEM IITM. The CEM II

is a direct, bolt-on replacement for the

original equipment muffler, and is

designed to fit the specific bus/engine

combination (over 68 models are

available).

The piston crowns are 15:1

compression ratio and are DDC parts. JM

indicates that the original coach engine

cylinder liner has a 0.95 inch inlet port.

The cylinder liner of the candidate kit

has 0.85 inch inlet ports. The

proprietary camshafts increase the

amount of time that the combustion

gases stay in each cylinder, similar to

internal exhaust gas recirculation. The

blower drive gear is a 40 tooth gear. The

blower assembly is a 100-percent bypass blower for increased fuel

efficiency. The turbocharger is a

standard DDC part that has been

specifically selected. The offset replaces

the standard key used to mount the

front pulley or gear that also holds the

speed sensor pulse wheel. When the

engine rebuild with the candidate kit is

complete, it may be necessary to change

the ECM program. The notification lists

the correct ECM program, which varies

by engine rotation direction, engine

power rating, and diesel fuel type. The

program can be changed at a local DDC

distributor.

The CCTTM kit is to be used in

conjunction with an engine rebuild

performed in accordance with standard

DDC rebuild procedures using specified

engine rebuild parts. The kit is installed

using standard DDC rebuild practices

except where amended by JM. The

specific parts and parts numbers for the

components of the candidate kit are

listed in the JM notification. No cylinder

heads are listed as part of the kit. EPA

requests comment regarding whether

cylinder heads should be included as a

component of the kit.

The kit instructions specifies fuel

injector height, offset key size, and

electronic control module (ECM)

program. The JM notification contains

an installation guide for the CCT

upgrade kit.

JM presents exhaust emissions data

from testing a DDC 6V92TA engine

model, once rebuilt with the candidate

kit and again rebuilt in a baseline

configuration. Testing was conducted in

accordance with procedures set forth at

40 CFR Part 86, Subparts N and I. The

notification provides lists of the DDC

parts used for rebuilding the baseline

and certification test engines. Table 1

below summarizes the data.
Federal Register / Vol. 63, No. 93 /Thursday, May 14, 1998 / Notices 26797

TABLE 1.—SUMMARY OF JM TESTING

Gaseous and particulate test

Transient engine test

(g/bhp-hr)

1991 HDDE

standards

1991

6V92TA

DDEC II

baseline 1

6V92TA

DDEC II with

CCTTM 1

HC ........................................................................................................................................................ 1.3 0.46 0.2

CO ........................................................................................................................................................ 15.5 1.2 0.6

NOX ...................................................................................................................................................... 5.0 4.9 5.0

PM ........................................................................................................................................................ 0.25 0.19 0.091

BSFC2 .................................................................................................................................................. .................... 0.483 0.489

Hp (R/O)3 ............................................................................................................................................. .................... 277/271 277/270

Smoke test Standards

(percent)

Percent opacity

ACCEL .................................................................................................................................................. 20 2.7 2.3

LUG ...................................................................................................................................................... 15 1.2 1.2

PEAK .................................................................................................................................................... 50 3.7 3.7

1All 6V92TA testing was performed on engine identification number 6VF186640.

2Brake Specific Fuel Consumption (BSFC) is measured in units of lb/bhp-hr.

3 Horsepower (Rated/Observed during testing).

As shown in Table 1 above, JM

presents baseline test data from a 1991

model year configuration which

documents PM emissions of 0.19 g/bhphr. The data of Table 1 indicate that,

when the engine is rebuilt with the

candidate CCTTM kit, PM emissions are

less than 0.10 g/bhp-hr, and emissions

of hydrocarbon (HC), carbon monoxide

(CO), oxides of nitrogen (NOX), and

smoke opacity are less than or equal to

the federal standards applicable for the

1993 model year.

Based on this testing demonstration,

apparently all CCT-equipped engines

would meet the 0.10 g/bhp-hr PM

standard because installation of the kit

results in the replacement of all

emissions related parts with a specific

set of parts, the combination of which

results in a documented PM level of

0.09 g/bhp-hr. The PM emissions level

of an original engine, prior to

installation of the candidate kit, appears

irrelevant because all emissions-related

parts are required to be replaced upon

installation of the kit. EPA requests

comments on whether or not all engines

for which certification is intended, will

meet the 0.10 g/bhp-hr PM standard.

Both the federal and California

exhaust emissions standards for NOX

were lowered to 5.0 g/bhp-hr beginning

with the 1991 model year. The

emissions data of the above table

indicate that engines equipped with the

candidate equipment can meet the 5.0 g/

bhp-hr NOX standard. Therefore, if

certified, the equipment could be used

for all applicable engines, including

those originally certified for use in

California.

The combination of the specified

engine rebuild parts, proprietary

camshafts, new settings of the kit, and

CEM–II, results in a PM level less than

0.10 g/bhp-hr and NOX level in

compliance with the 1991 federal

standard of 5.0 g/bhp-hr. EPA requests

comments on whether the emissions test

data presented by JM demonstrate that

all engines for which certification is

requested will meet the 0.10 g/bhp-hr

PM standard and applicable federal and

California NOX standards with the

candidate kit installed.

Even if ultimately certified by EPA,

the equipment described in JM’s

notification may require additional

review by the California Air Resources

Board (CARB) before use in California.

EPA recognizes that special situations

may exist in California that are reflected

in the unique emissions standards,

engine calibrations, and fuel

specifications of the State. While

requirements of the federal urban bus

program apply to several metropolitan

areas in California, EPA understands the

view of CARB that equipment certified

under the urban bus program, to be used

in California, must be provided with an

executive order exempting it from the

anti-tampering prohibitions of that

State. Those interested in additional

information should contact the

Aftermarket Part Section of CARB, at

(818) 575–6848.

No life cycle costs information has

been submitted by JM, because JM does

not intend certification of this

equipment to trigger program

requirements. If certified, no new

requirements would be placed on

operators, and no operator would be

required to purchase this equipment as

a result of certification of the candidate

equipment.

Certification of the candidate JM

equipment would affect operators as

follows. EPA has not yet certified

equipment, for the applicable DDEC

engines, to comply with the 0.10 g/bhphr standard and as being available for

less that the applicable life cycle cost.

Therefore, the 0.10 g/bhp-hr PM

standard has not been triggered for the

applicable engines. If the candidate

equipment is certified, then no new

requirements would be placed on

operators and no operator would be

required to purchase this equipment as

a result of certification.

If EPA certifies other equipment that

triggers the 0.10 g/bhp-hr standard, then

urban bus operators who choose to

comply with compliance Option 1 of

this regulation will be required to use

equipment certified to the 0.10 g/bhp-hr

standard no later than six months after

certification, when applicable engines

are rebuilt or replaced.

If the candidate CCT kit is certified,

then it would be available to be used in

full compliance with urban bus program

requirements. Certification of the

CMXTM converter/muffler manufactured

by the Engelhard Corporation (60 FR

28402 ; May 31, 1995) triggered the

requirement for the applicable engines,

when rebuilt or replaced, to reduce PM

by at least 25 percent. Until such time

that the 0.10 g/bhp-hr standard is

triggered, the certification of the CMXTM

means that operators who elect to use

compliance program 1 must use

equipment certified to reduce PM

emissions by at least 25 percent, when
26798 Federal Register / Vol. 63, No. 93 /Thursday, May 14, 1998 / Notices

rebuilding or replacing the applicable

engines. If certified, the candidate kit

would meet, and exceed, this

requirement. The candidate kit could

also be used in full compliance if the

program requirement to use equipment

certified to the 0.10 g/bhp-hr standard is

triggered.

If the Agency certifies the candidate

equipment, then operators who choose

to comply with Program 2 and install

this equipment, would use the 0.10 g/

bhp-hr certification level in their

calculations for fleet level attained

(FLA) as specified in the program

regulations.

The date of this notice initiates a 45-

day period during which EPA will

accept written comments relevant to

whether the equipment described in the

JM notification of intent to certify

should be certified pursuant to the

urban bus retrofit/rebuild regulations.

Interested parties are encouraged to

review this notification, and provide

written comments during the 45-day

review period. Separate comments

should be provided in writing to each of

the addresses listed under the

Addresses section of this notice.

At a minimum, EPA expects to

evaluate this notification of intent to

certify, and other materials submitted as

applicable, to determine whether there

is adequate demonstration of

compliance with: (1) the certification

requirements of § 85.1406, including

whether the testing accurately

substantiates the claimed emission

reduction or emission levels; and, (2)

the requirements of § 85.1407 for a

notification of intent to certify.

EPA requests that those commenting

also consider these regulatory

requirements, plus provide comments

on any experience or knowledge

concerning: (a) problems with installing,

maintaining, and/or using the

equipment on applicable engines; and,

(b) whether the equipment is compatible

with affected vehicles.

EPA will review this notification of

intent to certify, along with comments

received from the interested parties, and

attempt to resolve or clarify issues as

necessary. During the review process,

EPA may add additional documents to

the docket as a result of the review

process. These documents will also be

available for public review and

comment.

Dated: May 5, 1998.

Richard D. Wilson,

Acting Assistant Administrator for Air and

Radiation.

[FR Doc. 98–12849 Filed 5–13–98; 8:45 am]

BILLING CODE 6560–50–P

ENVIRONMENTAL PROTECTION

AGENCY

[FRL–6013–8]

Retrofit/Rebuild Requirements for 1993

and Earlier Model Year Urban Buses;

Certification of Equipment

AGENCY: Environmental Protection

Agency (EPA).

ACTION: Notice of EPA certification of

equipment provided by Detroit Diesel

Corporation.

SUMMARY: Today’s Federal Register

notice announces EPA’s decision to

certify equipment to the 0.10 g/bhp-hr

standard for the Urban Bus Retrofit/

Rebuild Program. The equipment is

provided by the Detroit Diesel

Corporation (DDC).

DDC submitted to EPA a notification

of intent to certify equipment, in

materials signed July 16, 1997, pursuant

to the program regulations at 40 CFR

Part 85, Subpart O. On November 6,

1997, EPA published a notice in the

Federal Register that the DDC

notification had been received and

made the notification available for

public review and comment for a period

of 45 days (62 FR 60077). EPA has

completed its review and the Director of

the Engine Programs and Compliance

Division has determined that it meets all

requirements for certification.

Therefore, EPA certified this equipment

in a letter to DDC dated April 6, 1998.

The equipment consists of the base

engine components used on the 25%

reduction retrofit/rebuild kit certified by

DDC, components from the 25% retrofit

catalyst kit certified by Engine Control

Systems, Ltd. (ECS) and a TurboPac

supercharger system supplied by

Turbodyne Systems, Inc. that supplies

additional air for combustion during

engine acceleration.

The kit is applicable to 6V92TA urban

bus engine models made by Detroit

Diesel Corporation (DDC) from model

years 1979 to 1989 and equipped with

mechanical unit injectors (MUI), and

may be used immediately by transit

operators in compliance with program

requirements. The kit would be

available in three horsepower levels

(253, 277, and 294).

EPA has determined that this DDC kit

complies with the 0.10 gram per brake

horsepower-hour (g/bhp-hr) particulate

matter (PM) standard for the applicable

engines. EPA has not determined that

DDC’s notification complies with the

life cycle cost requirements of the

program regulations because no life

cycle costs were supplied with the

application.

Today’s Federal Register notice does

not trigger any additional program

requirements for transit operators. The

0.10 g/bhp-hr PM level has already been

triggered for all engines covered by this

notification.

The notification of intent to certify, as

well as other materials specifically

relevant to it, are contained in Category

XX–A of Public Docket A–93–42,

entitled ‘‘Certification of Urban Bus

Retrofit/Rebuild Equipment.’’ This

docket is located at the address listed

below.

Additional details concerning this

certification, the DDC’s kit, and

responsibilities of transit operators, are

provided below.

DATES: EPA certified this equipment in

a letter to DDC dated April 6, 1998.

Today’s Federal Register notice

announces this certification. The 0.10

g/bhp-hr standard was triggered on

March 14, 1997 (62 FR 12166) for all

engines covered by this certification.

ADDRESSES: The DDC notification, as

well as other material specifically

relevant to it, are contained at the U.S.

Environmental Protection Agency’s

Public Air Docket A–93–42 (Category

XX–A), Room M–1500, 401 ‘‘M’’ Street

SW, Washington, DC 20460.

The DDC 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 EPA for copying docket materials.

FOR FURTHER INFORMATION CONTACT:

Anthony Erb, Engine Programs and

Compliance Division (6403J), U.S.

Environmental Protection Agency, 401

‘‘M’’ St. SW, Washington, D.C. 20460.

Telephone: (202) 564–9259.

SUPPLEMENTARY INFORMATION:

I. Description of the Certified Kit

The certified kit described in today’s

Federal Register notice is provided by

DDC. It is certified to the 0.10 g/bhp-hr

standard but does not comply with the

applicable life cycle cost requirements

of the program. No cost data was

provided in the notification.

The certification described in today’s

notice applies to 1979 through 1989

model year DDC 6V92TA engines that

are equipped with mechanical unit

injectors (MUI) and certified to federal

emissions standards. It does not apply

to engines certified to California

emissions standards. The impact of this

decision on transit operators is

discussed in more detail in the ‘‘Transit

Operator Requirements’’ section below.