All tax returns or reports received by the Division of Revenue after January 1, 1989, shall be preserved for not less than 3 years, after which time the Secretary of Finance may establish guidelines and standards for retention and, upon the recommendation of the Director of Revenue, may authorize and direct their disposal or destruction.
30 Del. C. 1953, § 351; 59 Del. Laws, c. 147, § 1; 68 Del. Laws, c. 187, § 24; 69 Del. Laws, c. 188, § 3.