D.C. Mun. Regs. tit. 20, § 2301
2301.1 Individuals shall apply for certification on a form prescribed by the District Department of the Environment in one (1) of the categories or subcategories of pest control outlined in this section (subject categories are classified in accordance with 40 C.F.R. § 171.3).
2301.2 Ornamental and Turf Pest Control - this category includes applicators using or supervising the use of pesticides to control pests in the maintenance and production of ornamental trees, shrubs, flowers, and turf. This category contains the following subcategories:
(a) Exterior Ornamental Plants;
(b) Lawns and Turf; and
(c) Interior Ornamental Plants.
2301.3 Aquatic Pest Control - this category includes applicators using or supervising the use of pesticides purposefully applied to standing or running water, wetland areas, or within tidal basins, excluding applicators engaged in public health-related activities included in § 2301.6.
2301.4 Right of Way Pest Control - this category includes applicators using or supervising the use of pesticides in the maintenance of public roads, electric powerlines, pipelines, railway right-of-way, or other similar areas.
2301.5 Industrial, Institutional, Structural, and Health Related Pest Control - this category includes applicators using or supervising the use of pesticides in, on, or around food handling establishments; human dwellings; industrial establishments, including warehouses and grain elevators; institutions, such as schools and hospitals; and any other structures and adjacent areas, public or private; and for the protection of stored, processed, or manufactured products. This category contains the following subcategories:
(a) General Pest Control - preventing, repelling, or controlling insects, fungi, or other pests within or adjacent to structures of any kind, or the adjacent grounds, or where people may assemble or congregate. This subcategory does not include work otherwise defined in §§ 2301.5(b) through (f);
(b) Wood Destroying Organism - preventing, repelling, or controlling termites, powder post beetles, fungi, or wood destroying organisms in or on structures of any kind of pre-treating areas or the surrounding grounds where the structures are to be constructed;
SOURCE: Section 4 of the Pesticide Operations Act of 1977, effective April 18, 1978 (D.C. Law 2-70; 24 DCR 6867 (February 17, 1978)); as amended by Final Rulemaking published at 25 DCR 3044 (October 6, 1978), incorporating the text of the Proposed Rulemaking published at 25 DCR 2118 (August 25, 1978); as amended by Final Rulemaking published at 62 DCR 3340 (March 20, 2015).