Sarika asks:

A 5 storey multifamily residential building built in 1950's is undergoing a major renovation. The existing air conditioning equipment contains CFCs based refrigerants that are known to be harmful to the environment. In order to comply with EQ Prerequisite 3, Fundamental refrigerant management, what is the required timeline for phasing out CFCs in all air conditioning equipment?
a) CFCs must be phased out no later than 5 years after project completion.
b) CFCs must be phased out prior to the project completion.
c) CFCs must be phased out no later than 1 yeas after project completion.
d) CFCs must be phased out before construction breaks ground.
e) None of the above. There is no required timeline phasing out CFCs in buildings built before 1973.