U.S. Senators Elizabeth Warren (D-Mass.), Ben Cardin (D-Md.) and Sherrod Brown (D-Ohio) have introduced legislation that would repeal authority from the Internal Revenue Service to contract with private collection agencies to collect unpaid taxes.

Now in its third iteration, “each time the program has been allowed to function, it has been shown to cost the federal government more money than it takes in while targeting some of the most vulnerable taxpayers” and potentially violating their rights, a statement announcing the legislative proposal says.