In all contracts for the sale of coal, charcoal, and ice, the term "ton" shall mean two thousand pounds [907.18 kilograms]. A sale of coal, charcoal, or ice in any manner except by weight is prohibited.
N.D. Cent. Code § 64-01-08
Standard weight of coal, charcoal, and ice
Official source: North Dakota Legislative Branch. Reproduced from public-domain North Dakota statutes; confirm against the official source for the current text. Not legal advice.