| (1) | Greenhouses and in vitro multiplication facilities require approval by the authority on a biennial basis, based on the guidelines of ISPM 10, 33 and 34. |
| (2) | In the case of a greenhouse— |
| (a) | the unit must be insect proof; and |
| (b) | the floor area of the greenhouse must be covered in such a manner that the roots of plants kept in containers thereon, cannot penetrate the soil on which the greenhouse is erected. |
| (3) | In the case of a unit intended for the cultivation of— |
| (a) | G0 seed potatoes, the growing medium and any water used must be free from disease causing organisms, or have been effectively decontaminated; |
| (b) | G1 seed potatoes, the unit must, for a period of at least the preceding 6 years, have been free of— |
| (i) | the host plants specified in Table 1; and |
| (ii) | any plants of Solanum tuberosum L. |
unless the authority determines otherwise.
| (c) | G2 and G3 seed potatoes, the unit must, for at least the preceding 4 years, have been free of— |
| (i) | the host plants specified in Table 1; and |
| (ii) | any plants of Solanum tuberosum L., |
unless the authority determines otherwise.
| (d) | G4, G5, G6, G7 and Certified Commercial seed potatoes, the unit must, for at least the preceding 3 years, have been free of— |
| (i) | the host plants specified in Table 1; and |
| (ii) | any plants of Solanum tuberosum L., |
unless the authority determines otherwise.
| (4) | In the case of G2 or G3 seed potatoes that have been established on the same unit with seed potatoes of the generations referred to in subsection (3)(d), the unit must, for at least the preceding 4 years, have been free of— |
| (a) | the host plants specified in Table 1; and |
| (b) | any plants of Solanum tuberosum L., |
unless the authority determines otherwise.
