America's Greenest School Finalists Selected: Let the Voting Begin

America's Vote Will Determine Winner of Plug-In Hybrid School Bus from IC Bus

WARRENVILLE, Ill., May 11 /PRNewswire/ -- America votes online for the
nation's top singers and celebrity dancers, but now they can vote online to
decide which school deserves the title of America's Greenest School.

(Photo: http://www.newscom.com/cgi-bin/prnh/20090511/AQ14282)

Ten finalists, listed below, have been selected out of nearly 2,000 essay
submissions as part of a search for the most environmentally-friendly school
in the United States. America now has one week to read the essays and vote at
www.AmericasGreenestSchool.com for its pick to win the title of America's
Greenest School. The winning school will receive a plug-in hybrid school bus
from IC Bus, which can increase the fuel efficiency of standard school buses
by up to 65 percent and reduce greenhouse gas emissions by up to 40 percent.
The hybrid bus has an estimated retail value of $200,000. The student who
submitted the winning essay will win a $5,000 scholarship.

Those who cast a vote are eligible to receive a $200 gift card to
www.greenandmore.com, a Web site for eco friendly products. Three gift cards
will be given away each day of voting from May 11-17. Votes are limited to one
per e-mail address per day. The Official Rules are available at
www.AmericasGreenestSchool.com.

"The quality and volume of submissions was overwhelmingly positive. We were
quite impressed," said David Hillman, a contest judge and IC Bus, global
marketing director. "It is so encouraging to see what schools all over the
country are doing to take care of this planet, starting with riding the school
bus." The American School Bus Council estimates that every school bus full of
kids takes 36 passenger cars off the road.

Nearly 2,000 essays were submitted on behalf of more than 760 different
schools. Students in New York, Florida, Michigan, Ohio and California
submitted the most essays (in that order). Environmental highlights of the
essays included the development of bus-riding campaigns, use of solar or wind
power, ecosystem preservation projects, student environmental clubs, efforts
to reduce energy and water usage, and various recycling programs. Terra
Wellington, author of Mom's Guide to Growing Your Family Green: Saving the
Earth Begins at Home and representatives from IC Bus, the nation's largest
school bus manufacturer, served as contest judges to narrow the field to 10
finalists.

Finalist student essays and schools to be voted on
atwww.AmericasGreenestSchool.cominclude:
-- Alexander C., Irvington High School, Fremont, Calif.
-- Dominik D., Riviera Beach Maritime Academy, West Palm Beach, Fla.
-- Kara D., Asheboro High School Zoo School, Asheboro, N.C.
-- Brianna F., Our Lady of the Sacred Heart High School, Pittsburgh, Pa.
-- Amelie H., Sidwell Friends School, Washington, D.C.
-- Bria K., Walden III Middle and High School, Racine, Wisc.
-- Katherine K., Academy of the Holy Angels, Demarest, N.J.
-- Carolyn L., WACO Elementary School, Crawfordsville, Iowa
-- Hilary P., Redmond High School, Redmond, Wash.

-- John T., Morningside Elementary School, Salt Lake Valley, Utah

Those receiving honorable mention include:
-- Lane A., Highland Park Senior High School, Highland Park, Ill.
-- Steve C., Conway High School, Conway, Ark.
-- April D., Holy Name High School, Parma Heights, Ohio
-- Christian L., Half Hollow Hills High School East, Dix Hills, N.Y.
-- McKenna R., Oxford High School, Oxford, Ala.

-- Hannah S., Ann Arbor Skyline High School, Ann Arbor, Mich.

The contest, announced in January, accepted essay submission until April 30,
2009. Online voting occurs May 11-17 and the winner will be announced in early
June.

About IC Bus
IC Bus, LLC of Warrenville, Ill., is a wholly-owned subsidiary of Navistar,
Inc. (NYSE: NAV). The nation's largest integrated manufacturer of school
buses, IC Bus is a global leader in passenger protection, chassis design,
engines and ergonomics. The company is also a producer of commercial buses.
All IC Bus buses are sold, serviced and supported through a renowned dealer
network that offers an integrated customer program encompassing parts,
training and service. Additional information is available at www.icbus.com.

SOURCE IC Bus, LLC

Media, Lauren Sugarman, +1-312-228-6967, Lauren.Sugarman@Ketchum.com; or Dena
Leuchter, +1-630-753-6068, Dena.Leuchter@Navistar.com, or Investors, Heather
Kos, +1-630-753-2406, Heather.Kos@Navistar.com, both of Navistar, Inc., all
for IC Bus, LLC