COLUMBUS, Ohio (AP): A proposed constitutional amendment that would change the way Ohio draws congressional districts has cleared another hurdle on its way to the state ballot.

The Ohio Ballot Board certified the measure on Tuesday as a single issue. The decision clears backers to begin collecting the roughly 305,000 signatures needed to place the issue before Ohio voters.

Fair Congressional Districts for Ohio modeled the proposal after a plan overwhelmingly approved by Ohio voters in 2015. That earlier plan changed the map-making process for the districts of lawmakers in the Ohio House and Ohio Senate. This attempt would impact Congressional members serving in the U.S House and U.S. Senate.

Supporters say they want to stop lawmakers from creating congressional districts that are overwhelmingly packed with either Republicans or Democrats.