White House Chief of Staff Reince Priebus Jan. 20 instructed federal agencies to freeze all pending regulations, a move that seems to include a number of labor and employment initiatives that had been in the works under the Obama administration.

Priebus told the agencies to hold off on sending new regulations to the Office of Management and Budget and to postpone for at least 60 days all regulations that have been published but haven’t yet taken effect. He also encouraged agencies to “consider potentially proposing further notice-and-comment rulemaking” for any regulations that have been held up over legal...