The Environmental Protection Agency says the standards will help combat climate change, but Governor Mike Pence says the proposal could hurt Indiana's economy.
A coal to natural gas plant that could be built in Rockport is in the hands of the Indiana Supreme Court.
An Evansville-based coal company plans to create a new surface mine in southwestern Indiana near the Patoka River National Wildlife Refuge.
Indiana ranked 7th in the nation for coal production in 2010, according to the U.S. Energy Information Administration.
The coal gasification plant that has been in construction for the past five years is operating commercially.
Sen. Jim Merritt says neither side in a case involving a proposed coal gasification plant in Rockport has any idea what the Supreme Court will decide.
The court is determining whether a contract between the state and the company in charge of the coal gasification plant is valid.
EPA regulations are putting a strain on older coal plants, including some in Indiana.
A mine in Southwestern Indiana stopped coal removal operations last week and has begun an environmental restoration process.
The public hearing on the energy master plan is scheduled next Monday at Whittenberger Auditorium in the Indiana Memorial Union.