When is it essential to take measures to release trapped cfc, hcfc, or hfc refrigerant from the compressor oil during refrigerant recovery?

self-contained recovery device

Explanation:

Based on the information provided within the question it can be said that it is essential to do this when using a self-contained recovery device. This is a piece of equipment used in order to remove refrigerant such as CFC, HCFC, or HFC refrigerants from various different appliances, by using a pressurized recovery tank.

answer; i believe that the correct answer is (department   of highway safety and motor vehicles);

if you suspect that your immediate supervisor, department manager, or company is engaging in something unlawful you must do your best to end the misconduct immediately while also protecting yourself, your livelihood, and your family’s future.