This Iowa Senate proposal would give school principals the power to waive mask requirements Ian Richardson, Des Moines Register What will the Iowa Legislature focus on in 2021? Replay Video UP NEXT Iowa school principals would have the power to waive mask requirements in order to grant students permission to attend class in-person without a facial covering, according to a new proposal in the state Senate. The measure would give principals more leeway to help children — especially elementary school children — whose use of a face covering may interfere with their learning, Sen. Amy Sinclair, R-Allerton, said Wednesday afternoon as she proposed the measure as an amendment to another bill during a Senate Ways and Means Committee meeting.