Pub. L. 108-7, div. I, tit. III, sec. 355

Sec. 355. No funds appropriated in this Act may be used to apply or enforce a regulatory requirement for strengthening of flight deck doors on classes of aircraft not specifically required to take such action under Public Law 107–71, section 104(a)(1), unless and until the Under Secretary of Transportation for Security, after opportunity for notice and comment, determines that such strengthening is necessary for aviation security purposes.