The Environmental Protection Agency is stripping the states of their authority, and money, through a series of unfunded mandates, the Chamber of Commerce said in a new study released Wednesday.

“Instead of being the system of cooperative federalism that Congress intended, the current relationship between the Environmental Protection Agency and the states has become one-sided, with the federal government imposing its will,” William Kovacs, the Chamber’s senior vice president for environmental and regulatory affairs, said following the study’s release.