The certificate of election to a member of Congress must be signed by the governor with the great seal affixed and must be countersigned by the secretary of state. The governor shall cause the certificate to be delivered to the individual elected.
N.D. Cent. Code § 16.1-15-47
Certificate of election to member of Congress - Signing - Delivering
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.