District of Columbia Code Division VIII. General Laws. § 48-401. Definitions.

(1) “Department” means the Department of Energy and Environment.

(2) “Horticultural techniques” means the scientific, artistic, and technological methods used to cultivate and manage an agricultural space, such as growing from the ground, hydroponics, container farming, vertical farming, or growing in greenhouses or raised beds.

(3) “Produce” means any substance produced for human consumption and nourishment using horticultural techniques, such as vegetables, fruits, grains, mushrooms, honey, herbs, nuts, seeds, and rootstock.

(3A) “Substantially free of contamination” means that the levels of arsenic, lead, and heavy metals in the soil fall within the acceptable parts per million range identified in regulations promulgated by the Mayor.

(4) “Urban farm” means any property in the District of Columbia that is used for the growing, cultivating, processing, and distributing of crops for profit, not for profit, or for educational purposes.  The term “urban farm” shall not include backyard or community gardens.

(5) “Vacant land” means land located in the District of Columbia that: