Which of the following is a requirement for recovery or recycling equipment manufactured after November 15, 1993?

The requirement for recovery or recycling equipment manufactured after November 15, 1993, is that it must recover 90% of refrigerant if the compressor is operational. This stipulation is established by EPA regulations to ensure that devices used for refrigerant recovery minimize the amount of refrigerant released into the atmosphere during service operations.

When the compressor of a system is functioning, the recovery equipment is expected to achieve a high efficiency of 90% recovery. This not only helps in preventing environmental harm from refrigerant emissions but also facilitates the safe reuse of refrigerants, aligning with environmental practices aimed at protecting the ozone layer.

Other options may address different requirements for equipment or additional capabilities, but they do not meet the specific standard mandated for operational compressors with regard to efficient refrigerant recovery as outlined by the EPA.