In case of loss upon an insurance against fire, an insurer is exonerated if notice of the loss is not given to the insurer by some person insured or entitled to the benefit of the insurance without unnecessary delay.
N.D. Cent. Code § 26.1-32-05
Notice of loss must be given promptly
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.