N.H. Rev. Stat. Ann. § 433:16

The term "certified seed potatoes" as used in this subdivision shall include potatoes (Solanum tuberosum) that have been inspected and tested by the commissioner of agriculture, markets, and food or his authorized agents and found to be reasonably free from disease and other defects, as specified in the rules adopted by the commissioner of agriculture, markets, and food under the provisions of this subdivision.