District of Columbia Code Division VIII. General Laws. § 47-2853.133. Certain representations prohibited.

(1) Undertake responsible charge for the practice of engineering;

(2) Use the title “professional engineer,” “registered engineer,” “engineer,” or “engineering design” or display or use any words, letters, figures, titles, signs, cards, advertisements, or any other symbols or devices indicating or tending to indicate that the person is a licensed engineer or professional engineer; except, that this subparagraph shall not apply to a person who uses the title “professional engineer” or “registered engineer” or otherwise indicates the person is a licensed engineer or professional engineer in accordance with the laws of another jurisdiction in which the person is licensed as a professional engineer and in good standing, so long as the use or indication also indicates the jurisdiction in which the person is licensed; except also, that any person any person may use the title “engineering aide,” “engineering assistant,” “engineering technician,” or “engineering technologist”; or

(3) Engage directly in the practice of engineering in the District; except, that this paragraph shall not apply to a person acting as a consultant, officer, or employee of the District government or an independent agency of the District of Columbia, or to a graduate of a program accredited by the Accreditation Board for Engineering and Technology or another accreditation entity that is acceptable to the Board of Professional Engineers while under the responsible charge of a professional engineer licensed pursuant to § 47-2853.132.