INDIANAPOLIS (AP) — The future remains uncertain for a proposed limit on Indiana’s authority to make its own environmental policies.

The Senate Environmental Affairs Committee heard hours of testimony Monday on the bill, which has already passed the House.

Bill sponsor and committee Chairman Ed Charbonneau, a Republican from Valparaiso, said he had not made up his mind about the next step. He also says he has not talked to anyone outside the committee about the measure.

Under the measure, the Indiana Department of Environmental Management would not be allowed to make rules tougher than similar federal laws.

Energy and manufacturing groups argue potential overreach would hinder economic development, but opponents say the state needs to be able to make policies that are unique to Indiana’s environmental problems.