When the EPA determines a state’s plan for compliance with the rule isn’t good enough, it steps in with its own plan.

Unit No. 3 is buzzing with construction workers who are installing environmental upgrades to make the coal-fired operation run cleaner.

The Texas Commission on Environmental Quality didn’t take the news well, saying the EPA’s requirements would cost electricity customers billions of dollars for “a negligible increase in visibility.”

Lienke says there are four ways Congress can obstruct EPA rules.

The Sierra Club’s Whitney Pearson told The Oklahoman OG&E’s compliance plan doesn’t include enough wind energy.

A plan to comply with the regional haze rule is due in August.

In effect, the EPA rule would require coal plants in Oklahoma and dozens of other states to shut down, install expensive air scrubbers, or switch to a different fuel source.

The agreement between the utility, state, and EPA is expected to bring PSO into compliance with the regional haze rule.