N.D. Admin. Code § 43-02-03-85
All producers, transporters, storers, refiners, gasoline or extraction plant operators, and initial purchasers within North Dakota shall make and keep appropriate books and records for a period not less than six years, covering their operations in North Dakota from which they may be able to make and substantiate the reports required by this chapter.
History: Amended effective January 1, 1983; July 1, 2002.