; (2) a description of risk-based oversight methods applied to ensure aviation safety, including to specific issues addressed in the year preceding the report that in the determination of the Administrator address safety risk; and (3) in the instance of specific reviews of air carrier performance to safety regulations, a description of cases where the timelines for recurrent reviews are advanced. 326. Aircraft air quality (a) Educational materials Not later than 1 year after the date of enactment of this Act, the Administrator shall, in consultation with relevant stakeholders, establish and make available on a publicly available Internet website of the Administration, educational materials for flight attendants, pilots, and aircraft maintenance technicians on how to respond to incidents on board aircraft involving smoke or fumes. (b) Reporting of incidents of smoke or fumes on board aircraft Not later than 180 days after the date of enactment of this Act, the Administrator shall, in consultation with relevant stakeholders, issue guidance for flight attendants, pilots, and aircraft maintenance technicians to report incidents of smoke or fumes on board an aircraft operated by a commercial air carrier and with respect to the basis on which commercial air carriers shall report such incidents through the Service Difficulty Reporting System. (c) Research to develop techniques to monitor bleed air quality Not later than 180 days after the date of enactment of this Act, the Administrator shall commission a study by the Airliner Cabin Environment Research Center of Excellence— (1) to identify and measure the constituents and levels of constituents resulting from bleed air in the cabins of a representative set of commercial aircraft in operation of the United States; (2) to assess the potential health effects of such constituents on passengers and cabin and flight deck crew