A number of important policies and precedents for collective bargaining in the construction industry will remain in place for now.

The National Labor Relations Board Dec. 14 rescinded its call for public input on what unions must do to establish that they have a full bargaining relationship with a construction company based on a pre-hire agreement.

That leaves in place key precedents with enormous practical consequences for businesses and unions—at least for now. A construction company can withdraw from a pre-hire relationship once a labor contract expires, but a union with bargaining rights under federal labor laws can’t be ousted...