KOWWIN v1.69 (April 2015) © 2000-2015 U.S. Environmental Protection Agency KOWWIN is owned by the U.S. Environmental Protection Agency and is protected by copyright throughout the world. Permission is granted for individuals to download and use the software on their personal and business computers. Users may not alter, modify, merge, adapt or prepare derivative works from the software. Users may not remove or obscure copyright, tradename, or proprietary notices on the program or related documentation. KOWWIN contained therein is a tradename owned by the U.S. Environmental Protection Agency.