Lawmakers in Washington, D.C., are the latest to push for cellphones to be restricted in schools after several states have led the way on the trend.

Eight states, including Florida and California, have passed laws that set up a ban on students from using cellphones in the classroom, and more than a dozen other states are exploring bans. The push for restricting cellphone usage comes after research has found it has become detrimental to teachers’ ability to conduct classes.