The term “joint rates” when used in this subtitle with reference to street railways shall be taken to mean rates between unrelated lines in effect on March 4, 1913, under then existing law or under contract, or which may thereafter be specifically authorized by law.
D.C. Code § 34-211
“Joint rates” defined
Mar. 4, 1913, 37 Stat. 974, ch. 150, § 8, par. 1
Official source: D.C. Law Library (Council of the District of Columbia). Reproduced from public-domain District of Columbia statutes; confirm against the official source for the current text. Not legal advice.