For the tax year beginning after December 31, 2018 and ending before January 1, 2020, and for tax years beginning after December 31, 2024, notwithstanding any other provision of this chapter and in lieu of the tax imposed by §§ 47-1806.03(a)(7)(A), 47-1807.02(a)(4), and 47-1808.03(a)(4), the tax on a capital gain from the sale or exchange of an investment in a Qualified High Technology Company, as defined in § 47-1817.01(5)(A), shall be at the rate of 3% if:
D.C. Code § 47-1817.07a