In addition to the requirements of Chapter 1 (General Provisions), Subchapter III of the Act (D.C. Official Code § 29-103.02 (2011 Repl.)), the name requirements apply to domestic and foreign entities.
The following word, phrase, or abbreviation indicating the type of entity shall appear at the end of the name of the entity: "Assn", "Assn.", "Assoc", "Assoc.", "Coop", "Co-op", "cooperative association", "corporation", "corp.", "incorporated", "Inc.", "professional corporation", "PC", "professional association", "PA", "Limited", "Ltd.", "limited partnership", "limited liability partnership", "LLP", "registered limited liability partnership", "RLLP", "limited liability limited partnership", "LLLP", "registered limited liability limited partnership", "RLLLP", "limited liability company", "LLC", or similar words, phrases, or abbreviations indicating entity types as defined by D.C. Official Code § 29-103.02 (2011 Repl.).
D.C. Mun. Regs. tit. 17, r. 17-710