If a use is not specifically authorized as a permitted use by right, special exception or conditional use by Article
III of this chapter, the Zoning Hearing Board may authorize such use as a special exception in a T-1, MD, ED, CBD, GB or D District if the applicant specifically proves to the clear satisfaction of the Zoning Hearing Board that all of the following conditions would be met:
A. The proposed use would be closely similar in impacts and character
to uses permitted in that district;
B. The proposed use would be no more intensive with respect to external
impacts and nuisances than uses that are permitted in the district;
C. The use would meet the standards that would apply under §
350-56 for a special exception use; and
D. The use is not specifically prohibited in that district.