The state of Indiana is threatening mutiny over the Obama administration’s rule requiring states to reduce their power plant emissions to a rate determined by the EPA. Indiana would be required to lower emissions by 20 percent. Under the regulation, the EPA will write and enforce rules for states who fail to submit them.

In a letter sent to President Obama this week, Gov. Mike Pence (R) said that unless significant changes are made in the regulation, Indiana will not comply with it.

The rule, which was proposed in June, is aimed at reducing greenhouse gas emissions in the United States in the range of 26 to 28 percent below 2005 levels by 2025 in an effort to combat climate change.

Pence called the Clean Power Plan “a vast overreach of federal power that exceeds the EPA’s proper legal authority and fails to strike the proper balance between the health of the environment and the health of the economy.”

Pence accused Obama of placing environmental concerns above all others.

In addition to Pence, lawmakers in Texas and Wisconsin have voiced opposition to the rule. Oklahoma Gov. Mary Fallin (R) has actually instructed her staff to ignore it.

Indiana gets 85 percent of its electricity from coal and is eighth in the nation in terms of coal production.