One 6-inch auxiliary top mount fan shall be installed for window defogging. This fan is not to be considered a defroster.
Md. Code Regs. 11.19.02.28
Regulation .28D amended effective June 27, 1988 (15:13 Md. R. 1557); January 8, 1990 (16:26 Md. R. 2795); October 7, 1996 (23:20 Md. R. 1425)
Regulation .28 amended effective January 21, 2013 (40:1 Md. R. 20)