S.C. Code Ann. Regs. 27-150 – [Regulations Promulgated.]

1. All persons desiring to sell, barter, or give away sweet potatoes for seed purposes or who expect to bed sweet potatoes for the purpose of selling plants must have at least three inspections by the South Carolina State Crop Pest Commission and a certificate stating that they were found apparently free from the sweet potato weevil (Cylas formicarius Oliv.), black rot, stem rot and other especially injurious insects and diseases of the sweet potato.
1. (a) First Inspection: The first inspection shall be made while the crop is in the field, preferably the latter part of August and during September. During this inspection especial attention is given to stem rot or wilt.
2. (b) Second Inspection: The second inspection is made sometime during storage. During this inspection especial attention is given to black rot.
3. (c) Third Inspection: This is an inspection of the beds and is soon after the plants come up. Other inspections may be made when in the judgment of the Commission it is deemed necessary.
2. Growers will be required to treat seed potatoes prior to bedding and to bed in soil that has been properly treated. Recommended treatment procedures may be obtained from members of the Commission, from county agents or any qualified agricultural official.
3. Sweet potatoes for seed purposes or sweet potato plants shipped within or out of the state of South Carolina must be accompanied by a sweet potato permit of the South Carolina State Crop Pest Commission. This permit is issued at cost after all requirements of these regulations are met. Any grower desiring to ship sweet potato plants out of the state of South Carolina should notify this Commission so that a duplicate copy of his sweet potato certificate might be filed with the state concerned.
4. Sweet potatoes for seed purposes or sweet potato plants may be shipped into the state of South Carolina only after a certificate of inspection has been filed with the South Carolina State Crop Pest Commission by the state concerned and each shipment accompanied by a permit issued by the state concerned.
5. All persons, firms or corporations desiring to have their premises inspected for permit to transport sweet potatoes or sweet potato plants for propagating purposes shall make application before August 1, of each year. Applications received after the above date will not be acted upon until the first inspection is due again the following year. Persons planning to buy seed sweet potatoes from other sources in order to bed and sell plants must purchase these potatoes from inspected growers in order to qualify for a permit. A list of these growers may be obtained from the South Carolina State Crop Pest Commission, Clemson, South Carolina, upon request.