Officials with the Environmental Protection Agency and the U.S. Army Corps of Engineers are considering a change to a rule under the Clean Water Act.
Representative Hal Rogers says the rule change could seriously hurt the coal industry.
EPA officials say the rule change would simply clarify existing protections for streams and wetlands.
Rogers and other lawmakers questioned leaders of the Environmental Protection Agency Thursday during a House Appropriations Committee hearing.
"They're wanting to extend their jurisdiction over areas where there is a stream that may not be a stream,"