Business groups are up in arms over a second Obama administration proposal when it comes to union organizing elections.

The latest involves an expected “persuader rule” that would force companies to disclose when outside firms are hired to consult when it comes to union elections, according to The Hill.

Currently employers are only required to disclose the hiring of such firms on union elections when the consultants make direct contact with employees, however, the revised regulation would require employers to disclose any work by consultants on union election strategy.

A spokesperson for the AFL-CIO calls the proposal “sensible” while the U.S. Chamber of Commerce says the goal is to “to stop an employer to make its case during an union organizing campaign."

This follows a proposal recently reintroduced by the National Labor Relations Board, to speed up the pace of union elections, which has been heavily criticized by business groups. 

Read more about this latest proposal from The Hill.