The tax imposed by this chapter or pursuant to the authority granted in §§ 58.1-605 and 58.1-606 shall not apply to the following:
For purposes of this subdivision, "indoor, closed, controlled-environment commercial agricultural facility" shall include indoor vertical farming or a greenhouse, regardless of whether the greenhouse is affixed to real property and, "agricultural products" shall include any horticultural, floricultural, viticulture, or other farm crops. However, the exemption provided by this subdivision shall not apply to property used in producing cannabis or any derivative of cannabis.
Va. Code § 58.1-609.2