Have a situation, can a company prohibit someone who is a cross dresser from dressing as such on the job it it does not have any other type of dress code? I say no, unless a safety issue but am being met with resistance.

Have a situation, can a company prohibit someone who is a cross dresser from dressing as such on the job it it does not have any other type of dress code? I say no, unless a safety issue but am being met with resistance.