86 is amended to read as follows:???(c) DC ZONE BUSINESS- For purposes of this section--???(1) IN GENERAL- The term ???DC Zone business??? means any entity which is an enterprise zone business (as defined in section 1397B), determined--???(A) after the application of section 1400(e), and???(B) by treating no area other than the District of Columbia as an empowerment zone or enterprise community.??