D.C. Code § 28-4515 : LOCAL BUSINESS AFFAIRS — COMMERCIAL INSTRUMENTS AND TRANSACTIONS — OTHER COMMERCIAL TRANSACTIONS — RESTRAINTS OF TRADE —4515 - Uniformity TEXT PDF It is the intent of the Council of the District of Columbia that in construing this chapter, a court of competent jurisdiction may use as a guide interpretations given by federal courts to comparable antitrust statutes. D.C. Code § 28-4515 Mar. 5, 1981, D.C. Law 3-169, § 2, 27 DCR 5368.