The FAA extended by 24 months–to Sept. 2, 2009–the date for affected regional and major airline operators to comply with new Part 25 fire safety requirements for thermal/acoustic insulation used in transport-category airplanes manufactured after September 2 this year. The extension, applicable to Part 121 aircraft with a passenger capacity of 20 or more, is necessary to allow airframe manufacturers enough time to select and certify appropriate installations, the agency said.