The U.S. Transportation Security Administration delayed implementation of a new policy allowing small knives on aircraft,

the agency announced Tuesday. The changes had been scheduled to go into effect April 25. According to a TSA spokesperson, the delay is a temporary measure that will allow for "further input from the Aviation Security Advisory Committee, which includes representatives from the aviation community, passenger advocates, law enforcement experts and other stakeholders." Some airlines and industry organizations, including Delta Air Lines, American Airlines and the Association of Flight Attendants, had expressed concerns about the new policy. TSA announced no new date for implementation.