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DEFLECKTOR.COM 425 HALL AVENUE ST. PAULjiio 5 -1828 800.429.7768

### My name is Jonathan Fleck. I live in Minnesota. My company, A de F, Ltd.,

brought the Deflecktor Aerodynamic Wheel Cover, made of fabric, to the market. Our product is standard equipment on the Freightliner Cascadia Evolution model long haul truck, which receives credits from EPA under the Phase 1 framework. The smart folks at Freightliner made a series of tweaks — many like ours in the area of aerodynamics — to their existing 2010 EPA certified Cascadia and created the 2014 Cascadia Evolution, which is a fufl 7% more efficient. Our product on that truck is visually quite impactful, as it covers approximately 10 sq feet of wheel cavity area — it's a wheel cover... We have sold hundreds of thousands of these simple wheel covers, and I want to applaud EPA on incentivizing small, incremental, innovative technologies that ultimately add value in the big picture. A lot of times we underestimate the incremental, and when that incremental is scalable we may very well miss meaningful opportunities that move us to our ultimate goal; in this case, CO2 mitigation. Today our product can be seen approximately 12 times an hour on trucks in freight lanes across America on any given day, that number will more than double by this time next year based on deliveries. Our first customer, Schneider National, a charter member of EPAs Smartway Transport Partnership, has deployed our product fleet-wide. In a press release, in March of 2010, Schneider National announced fleet-wide use of our product on their 12,000 trucks, stating fuel savings of 150 gallons per truck per year based on their average fleet speed. This savings, approximately 1%, equates to 40 million fewer pounds of CO2 each year for just that fleet alone. The weight of our product is saved in fuel within ten days of typical use on trucks in the long haul segment. Regardless of how we monetize things, I'm quite proud of that fact as a
DEFLECKTOR.COM 425 HALL AVENUE ST. PAUL, MN 55110-1828 800.429.7768 

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### true measure of value. Schneider did extensive fuel economy testing over many

years and determined through exhaustive replication of these tests on tractors and trailers that our inexpensive, simple, patented approach made huge economic sense. When wheel covers were placed on trailers as well as tractors, fuel savings proved to be significant, a number that grows to approximately 2% when both tractor and trailer are equipped on all eight wheel ends. Schneider knows the fuel savings are double for a combination tractor-trailer, yet given the ratio of trailers to tractors, the actual return on investment is less because trailers sit idle most of the time and often out-number tractors by a factor of three. We applaud EPAs focus on vigilantly bumping efficiency of long haul tractor-trailer combinations through this new Phase 2 as it will bring further fucl savings through trailer efpiciency. EPA, it appears, took the approach to carve up the combination tractor-trailer into two regulatory phases. In the first phase a tractor manufacturer offers a coefficient of drag (cd) for their tractor, which in the case of our product is buried within that number and not quantified, yet it is known to be a significant contributor in lowering drag. In the second phase a collection of various products, largely aerodynamic, are encouraged to be incorporated into a trailer to reach the desired increase in efl^iciency. The truck and the trailer do not operate independent of the other. Making them more "incorporated" as a single efficient unit is the ultimate goal: however, EPA collects a coefficient of drag from the manufacturer for their tractor and then relies on Smartway and its certification methodology for trailers. When measuring the increases in efficiency of wheel covers on trailers and tractors independent of each other, the fuel savings get lost in the margin of error of the test methodology. With no enmity suggested, it is our belief that a hugely scalable opportunity is being missed. We suggest a remedy that would permit testing of both tractor and trailer in combination for the purposes of aerodynamic components that can be fitted to both. We believe current testing methodology is suflicient, albeit misapplied to either tractor or trailer and not the combination.

### The market opportunities of aerodynamic wheel covers have gained momentum

with many new entrants salivating at the commercial prospects. An aerodynamic wheel cover is the only aerodynamic component that is functional on both tractor and trailer, and yet because of this regulatory process that splits tractor from trailer in testing, it is lost in the noise. The addition of a single sentence to this regulation that would embrace testing of tractor-trailer combinations for aerodynamic components found on both would be helpful to permit aerodynamic wheel covers to scale in a marketplace that is worldwide. Thank you for the opportunity to make these public comments, and I hope that consideration be given to the subject matter presented.
Jonathan F. Fleck President, A de F, Ltd. 425 Hall Ave St Paul, MN 55110 1828 m 651 270 9148 jon@deflecktor.comI° 

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