Third party testing for recovery units has been required since:
A) November 15, 1993. B) July 1, 1992.
C) November 15, 1995. D) November 14, 1994.
Question 2
It has been illegal to vent ozone depleting refrigerants from stationary equipment since:
A) November 15, 1993. B) July 1, 1992.
C) November 14, 1994. D) November 15, 1995.