Aiming to become the "cleanest school district" in the United States, the Tucson Unified School District (TUSD) has literally put its money where its mouth is, investing nearly every cent allocated to it toward the aim of operating the cleanest school bus fleet and operations in the U.S.
"It's my feeling that when you're an educational institution putting the future of our country on your buses to take them to and from school, you need to do everything possible to have the ...