A U.S. Supreme Court decision endorsing Federal Trade Commission authority over some nonprofit professional groups could have another long-term consequence because of its cautious approach to the use of the so-called quick look analysis of anti-competitive restraints.

“This is the first time the Supreme Court has ever put the brakes on quick look,” says antitrust lawyer Roy T. Englert Jr. of the Washington, D.C., office of Chicago’s Mayer, Brown & Platt.