Military and aviation industries still need to use halon agents in certain equipment, for example the halons in fire extinguishers used on aircrafts, which require permits that must be applied for. To simplify the process for aviation industry operators that need to import halon fire extinguishers, the EPA has revised certain articles in regulations governing the use of chemicals listed in the Montreal Protocol.

To comply with the Montreal Protocol on Substances that Deplete the Ozone Layer, on 4 May 2007, the EPA promulgated the Management Regulations Governing Chemical Substances Listed in the Montreal Protocol on 4 May 2007 in accordance with the Air Pollution Control Act. The regulations contain 23 articles. .

Although nations that comply with the Montreal Protocol are prohibited from importing products containing chemicals that damage the ozone layer, certain exceptions have been made for products related to aviation or military use. In addition, the International Civil Aviation Organization has clearly stipulated regulations regarding where the halon fire extinguisher is to be installed as well as the schedule for phasing out in the use of halons on the aircraft.

Since it is still deemed necessary for military and aviation operations to use halon fire extinguishers, and the users of halons in aircraft must first obtain a permit issued by the industry competent authority, the EPA has decided to simplify the required procedures for the import of halon fire extinguishers by aviation enterprises. Revisions have been made to the methods for listing halon fire extinguishers as controlled substances, and the industry competent authority that is responsible for conducting reviews.

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