Approvals of lighting devices or other safety equipment, components, or assemblies remain valid unless revoked under section 39-21-31 or unless the department requires them to be renewed by regulation.
N.D. Cent. Code § 39-21-30.1
Duration of approval
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.