No combustible or nonfireproof building in the District of Columbia used or occupied or intended to be used or occupied for business purposes only shall be erected, altered, or raised to a height of more than 60 feet above the sidewalk, and no combustible or nonfireproof building shall be converted to such use if it exceeds said height.
D.C. Code § 6-601.02
Nonfireproof business buildings
June 1, 1910, 36 Stat. 452, ch. 263, § 2
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.