Essential Uses of CFCs for Metered-Dose InhalersUnder the Montreal Protocol on Substances that Deplete the Ozone Layer, the production and consumption of most Class I ozone depleting substances has been banned for decades. The Parties provided an exemption for “Essential Uses” in Decision IV/25. That decision states:
Use of a controlled substance should qualify as ‘essential’ only if:
- it is necessary for the health, safety or is critical for the functioning of society (encompassing cultural and intellectual aspects); and
- there are no available technically and economically feasible alternatives or substitutes that are acceptable from the standpoint of environment and health.
- all economically feasible steps have been taken to minimize the essential use and any associated emission of the controlled substance; and
- the controlled substance is not available in sufficient quantity and quality from the existing stocks of banked or recycled controlled substances. . .