South Dakota's Senate Bill 55 passed the Senate on a 23-12 vote on January 25, 2017, "despite guidance from the State Department of Education, state school boards, school administrators, teachers and scientists," according to the Sioux Falls Argus-Leader (January 25, 2017).

Indiana's Senate Resolution 17, introduced and referred to the Senate Committee on Education and Career Development as of January 23, 2017, would, if adopted, ostensibly urge the state department of education "to reinforce support of teachers who choose to teach a diverse curriculum." But the teaching of evolution is the specific target of the bill.