Repair shops for refrigeration equipment, air conditioners and other equipment that impact the ozone layer, must gain a license from the Ministry of Environment and Climate Affairs (MECA) to operate in the sultanate.
The license fees begins from OMR20 for small companies to OMR50 for larger ones.
The decision prohibited establishments from using adulterated or substandard materials, and advised them to ensure quality of materials used in repair and maintenance works, the report said.
Non-compliance would result in a fine of OMR200.
The establishments are forbidden to use recycled materials in the repair and maintenance process unless the material bears high quality, and is free from impurities and contaminants. Furthermore, the material must comply with technical standards, the report said.