Final answer:
The EPA's new regulations stipulate strict guidelines on the use of disposable cylinders for refrigerant recovery, in line with international agreements like the Montreal Protocol to protect the ozone layer by reducing ozone-depleting substances.
Step-by-step explanation:
Under the Environmental Protection Agency's (EPA) new regulations, the use of disposable cylinders for refrigerant recovery is highly regulated to prevent environmental damage. The implementation of these new rules aligns with international efforts to reduce the emission of ozone-depleting substances (ODS) such as chlorofluorocarbons (CFCs). Efforts such as the Montreal Protocol have led to the reduction of harmful substances being released into the atmosphere and towards recovery of the ozone layer. It is critical to follow the EPA's guidelines when dealing with substances that have the potential to contribute to ozone layer depletion and global warming, including proper recovery and disposal of refrigerants using compliant equipment and procedures.