49 U.S.C. § 2509

“The Secretary, in the case of any head injury protection matters not subject to section 2503(5) for which the Secretary is on the date of enactment of this Act [Dec. 18, 1991] examining the need for rulemaking and is conducting research, shall provide a report to Congress by the end of fiscal year 1993 identifying those matters and their status. The report shall include a statement of any actions planned toward initiating such rulemaking no later than fiscal year 1994 or 1995 through use of either an advance notice of proposed rulemaking or a notice of proposed rulemaking and completing such rulemaking as soon as possible thereafter.”