An aircraft shall be equipped with approved portable fire extinguishers, the required number of which shall be installed in compliance with Attachment 9. The fire extinguishing agents contained in the fire extinguisher shall not generate toxic gas in the aircraft when discharged.For the aircraft which the certificate of airworthiness is first issued on or after 31st of December 2011, halon-emitting fire extinguishers shall not be installed in its lavatory.For the aircraft which the certificate of airworthiness is first issued on or after 31st of December 2016, halon-emitting portable fire extinguishers shall not be installed.An pressurized or non-pressurized aircraft, for which the certificate of airworthiness is first issued on or after 1st of July 2002, shall equipped with protective breathing equipment (PBE), which meets the aircraft type certification of the state of design, in order to prevent crew from the smoke, carbon dioxide or other harmful gases during fire fighting, or an oxygen deficiency caused by cabin depressurization. The number of PBE required to be installed shall be in compliance of Attachment 10.If any aircraft, due to special circumstances, is unable to meet the compliance date of Halon alternatives that prescribed in paragraph 3 of this article, the operator shall submit an application to CAA for its discretion for release of such due date requirement. Along with its application, the operator shall expressly provide clear description of ground for application and the relevant information, if deemed applicable.ATTACHMENT 9 The Required Number of Portable Fire Extinguishers Meets the Requirements of a Civil Air Transport Aircraft.pdfATTACHMENT 10 The Required Number of Protective Breathing Equipment (PBE) meets the Requirements of a Civil Air Transport Aircraft.pdf