Since halon is a substance that depletes the ozone layer, these Regulations prohibit its use, particularly in fire protection systems. In accordance with regulation 4, the use of any new portable halon fire extinguisher is prohibited. Regulation 5 prescribes that an owner or a person in control of halon shall inform the Director General of any halon in his possession. Regulation 12 establishes that an owner or a person in control of an existing halon fire extinguishing system shall ensure that h