Final answer:
EPA regulations require that recovered or recycled refrigerant be used in new refrigeration systems (option 3) or reclaimed for future use, rather than being disposed of in landfills, released into the atmosphere, or sold directly to consumers.
Step-by-step explanation:
EPA regulations specifically address the handling of recovered or recycled refrigerants due to the potential environmental hazards they present. These substances are potent greenhouse gases, and their release can contribute significantly to climate change.
Therefore, recovered or recycled refrigerant must be managed with care. EPA regulations do not permit these substances to be disposed of in landfills, released into the atmosphere, or sold to consumers directly. Instead, EPA regulations mandate that recovered or recycled refrigerant should be used in new refrigeration systems or reclaimed for future use, ensuring they are handled in an environmentally responsible manner.