Why Retrofit?
Protecting Public Health
• Clean diesel technologies can be deployed
today to reduce the public exposure to diesel
emissions.
Cost Effective Emissions Reductions
• Diesel retrofit can provide a significant benefit-
to-cost ratio.
• Nonroad retrofits are extremely cost effective.
Broad Stakeholder Support
• Industry, government, and community and
environmental groups agree - cleaning up diesel
emissions is important.
• Have a shared responsibility for cleaning the air
and improving public health.
Implementation Advantages
• Diesel retrofits can be implemented quickly.
• Resources and leveraged funds are available.
I Testing
Retrofit Verification relies on data from en-
gine testing on prescribed cycles. Here an
engine is being
used for test-
ing a device at
Southwest Re-
search Institute
for verification
under the ETV
Program.
Learn about the National Clean
Diesel Campaign at:
www.epa.gov/cleandiesel
Marketing Opportunities for
Verified Technologies
EPA Funded Retrofit Projects
D 2006 Projects
• 2005 Projects
.-. 2004 Projects
• 2003 Projects
g 2000 - 2002 Projects
Since 2000, EPA has awarded over 175 grants, all of
which require verified technologies. As the National
Clean Diesel Campaign expands its scope of coverage
of the existing fleet and as more funding becomes
available, the demand for a wider variety of verified
technologies will increase.
EPA is seeking to verify technologies for the
following:
• Marine Engines
• Nonroad Equipment
• Locomotive Engines
EPA is also seeking to
verify technologies that
focus on reducing NOx emissions.
Tomorrow's Clean
Technology Today
EPA420-F-07-031
August 2007
Retrofit
Technology
Verification
National
Clean Diesel Campaign
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National Clean Diesel Campaign
Four Steps to Verifying a Technology
What is theTechnology
Verification Program?
EPA's Technology Verification Program of the Na-
tional Clean Diesel Campaign (NCDC) is designed
to evaluate the effectiveness of emission reduction
technologies.
Through the verification process, EPA evaluates
technology durability, and works with the manufacturer
to identify engine operating criteria and conditions
that must exist for the technology to achieve its
verified reductions. Technologies that are shown
to be effective are compiled on the Verified
Technologies List
www.epa.gov/otaq/retrofit/verif-list.htm
The ETV program assists in developing testing
protocols and verifying the performance of emission
reduction technologies.
Program Objectives
Review, test and verify the effectiveness
of emission reduction technologies
(i.e. after-treatment devices, fuels and
fuel additives, and engine rebuild kits).
Assist fleet operators in choosing the
appropriate technologies that will reduce
emissions of the vehicles/ engines in
their fleet.
1. Application
To begin the process, manufacturers submit to
EPA:
• Intent to Verify form
• Application
Both forms are available on EPA's Web site at:
www.epa.gov/otaq/retrofit/verif-process.htm
EPA requires a clear explanation of:
• howthe technology works
• the basis for emission reduction claims
• any potential unique testing needs
• operating criteria
• potential concerns for health or safety
2. Test Plan Preparation
A test plan is developed through the ETV program,
based on the specific technology and manufacturer's
intended market. On EPA's website, there are generic
verification protocols which are the basis for testing
devices, fuels, fuel additives and selective catalytic
reduction (SCR) systems. Under these protocols, the
Federal Test Procedure (FTP) is used to measure emis-
sions. The engine, number of tests, fuels, devices,
conditioning and other details are specified.
In-use Testing
Once technologies are verified and certain sales
thresholds are met, the manufacturer is responsible
for conducting in-use testing of those technologies.
A certain number of devices with approximately
25% and 75% of their service life must be retrieved
from vehicles / equipment and tested. Prior to re-
trieving devices, EPA will work with the manufac-
turer to select the appropriate sources of devices
and to establish testing sequences.
3. Testing
Prior to testing, the manufacturer provides to the
test laboratory:
• a degreened device (25-125 hrs of
operation),
• an aged device (1000 hrs of operation),
• test engine
EPA prefers the devices to be aged in the field. If
this is not possible, the manufacturer can work with
EPA to determine an aging plan. In some cases, an
inspection and functional test may be required to
ensure the unit is operating properly. Testing is
conducted following one of three test protocols
previously mentioned.
4. Data Analysis and Interpretation
Once testing is complete:
• The ETV program generates a report docu
menting the test program and results.
• EPA reviews this report, determines if the
technology has qualified for verification,
and assigns emission reduction levels.
It is important to note that this report is posted on
EPA Web sites and is available to the public.
Expanding Verification
The initial verification of technologies is typically
limited to engine types and model years that are
similar to the original test engine. Thereafter manu-
facturers may provide additional technical infor-
mation, new applications, and conduct additional
testing to expand the verified scope of coverage for
the technology. The manufacturer must submit suf-
ficient documentation to show any potential adverse
effects which could include an engineering analysis
of the upgraded product in lieu of test results.
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