Question

type i - question # 8
the sale of cfc, hcfc, hfc, and hfo refrigerants to service or install refrigeration and air - conditioning equipment is;
a banned from use unless you have a recovery machine.
b limited by law to hvac contractors and / or mechanical engineers.
c allowed only if there is proof of need.
d restricted to technicians who are epa certified in refrigerant recovery.

Explanation:

Brief[SSE Completed, Client Connection Error][SSE Completed, Client Connection Error][LLM SSE On Failure]

Answer:

Brief[SSE Completed, Client Connection Error][SSE Completed, Client Connection Error][LLM SSE On Failure]