Usage is a reasonable and lawful public custom concerning transactions of the same nature as those which are to be affected thereby, existing at the place where the obligation is to be performed, and either known to the parties or so well established, general, and uniform that they must be presumed to have acted with reference thereto.
N.D. Cent. Code § 1-01-31
Usage - Definition
Known as the North Dakota Century Code
The act spans §§ 1–1 (54 sections).
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.