The plats and squares and subdivisions of the City of Washington shall be drawn upon a uniform scale of not less than 1 inch to 50 feet, and shall show the lines of all subdivisions of the squares as the same existed at the date of the completion of each square.
D.C. Code § 1-1310
Scale of plats
Mar. 3, 1901, 31 Stat. 1425, ch. 854, § 1580
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.