The effort to ban large-scale data centers in Ohio is one step closer to getting on the ballot. On Wednesday, the Ohio Ballot Board unanimously approved a proposed amendment to the state constitution that would prohibit the construction of any data center using more than 24 megawatts a month — about 28 houses worth of power.

With the Ballot Board’s approval, organizers must get more than 400,000 signatures before July 1 in order to put the amendment on the November ballot.