Students in Lincoln County School District No. Campbell County School District in June approved a ban for K–8 students between opening and end-of-day bells, with high school students allowed to use their cellphones between class periods and during lunch. Cody High School in Park County School District 6 also implemented a total ban. Last year, Cowboy State Daily reported on a total ban implemented at Evanston High School during school hours. ‘Win Back Education’The Lincoln County district’s policy points to research showing the mere presence of a cellphone reduces cognitive capacity.