D.C. Mun. Regs. tit. 21, § 1499
1499.1 When used in this chapter, the following words and phrases shall have the meanings ascribed:
Applicant - any person submitting a submerged aquatic vegetation removal plan to the Director for approval.
Anadromous fish - a fish that migrate upstream from their primary habitat in the ocean to freshwater in order to spawn.
Director - the Director of the Department of Consumer and Regulatory Affairs or his or her representative.
Harvesting, cutting, removal or eradicating - any method either mechanical, physical, chemical or biological which can be used to remove submerged aquatic vegetation.
Navigable channel - any portions of tidal or nontidal water which are either designated as a channel by navigational aids or which are the deeper part of a water body where the main current flows and which afford the best passage for vessels.
Person - the federal government, the District, any county, municipal corporation, or other political subdivision or any of their units; an individual, receiver, trustee, guardian, executor, administrator, or representative of any kind; or any partnership, firm, association, public or private corporation or any other entity.
Submerged aquatic vegetation - a vascular or nonvascular hydrophyte, which is rooted in the hydrosoil and lies beneath the surface or the water, except for the flowering parts in some species.
SOURCE: Final Rulemaking published at 41 DCR 1971, 1976 (April 15, 1994).