The nine states that required schools to enact a cellphone policy but didn’t specify what those policies should include received a D. Meanwhile, four states received an F for failing to pass a cellphone ban bill and two states received a 0 for never introducing a bill. Number of states putting in place cellphone restrictions continues to growThis year, more states are looking to restrict students’ cellphone access during school. “They take up valuable class time trying to police the phones.”Do cellphone bans work? However, there is less evidence that cellphone bans are having a positive effect on students’ mental health—at least not yet. It’s actually impacting the primary mission of schools.”However, cellphone bans are only the first step, Hoover said.