The Seed Potatoes (England) Regulations 2006

PART I Seed potatoes capable of being marketed as pre-basic seed potatoes

In the course of making a determination for the purposes of Schedule 1, paragraph 1(b), where an authorised officer determines that seed potatoes are capable of being marketed as pre-basic seed potatoes, he may classify them as being seed potatoes of any of the classes specified in column 1 of table 1 where he is satisfied following inspection that the requirements specified in column 2 in relation to that class have been met.

Table 1

Column 1 Class	Column 2 Requirements
Pre-basic TC	(1) The seed potatoes shall— (a) be derived from nuclear stock or tested tubers supplied by a source acceptable to the Secretary of State which have been grown on a unit where no material of the species Solanaceae or other material, other than that derived from nuclear stock or tested tubers from a source acceptable to the Secretary of State, has been grown; and (b) have been kept free from— (i) potato viruses A, M, S, X, Y, leafroll, potato mop top virus, tobacco rattle virus and tobacco veinal necrosis or any other significant virus, (ii) witches' broom and blackleg, (iii) deviations of variety and type, and (iv) groundkeepers.
Pre-basic 1	(2) The seed potatoes shall— (a) be derived from— (i) nuclear stock or tested tubers supplied by a source acceptable to the Secretary of State which have been grown on a unit where no material of the species Solanaceae or other material, other than that derived from nuclear stock or tested tubers from a source acceptable to the Secretary of State, has been grown; (ii) a stock which was classified as pre-basic TC in the year preceding the planting of the crop; or (iii) such other seed potatoes as shall have been notified in writing by the Secretary of State as being acceptable to her; and (b) have been kept free from— (i) potato viruses A, M, S, X, Y, leafroll, potato mop top virus, tobacco rattle virus and tobacco veinal necrosis or any other significant virus, (ii) witches' broom and blackleg, (iii) deviations of variety and type, and (iv) groundkeepers.
Pre-basic 2	(3) The seed potatoes shall— (a) be derived from— (i) a stock which was classified as pre-basic 1 in the year preceding the planting of the crop; or (ii) such other seed potatoes as shall have been notified in writing by the Secretary of State as being acceptable to her; and (b) have been kept free from— (i) potato viruses A, M, S, X, Y, leafroll, potato mop top virus, tobacco rattle virus and tobacco veinal necrosis or any other significant virus, (ii) witches' broom and blackleg, (iii) deviations of variety and type, and (iv) groundkeepers.
Pre-basic 3	(4) The seed potatoes shall— (a) be derived from— (i) a stock which was classified as pre-basic 2 in the year preceding the planting of the crop; or (ii) such other seed potatoes as shall have been notified in writing by the Secretary of State as being acceptable to her; and (b) have been kept free from— (i) potato viruses A, M, S, X, Y, leafroll, potato mop top virus, tobacco rattle virus and tobacco veinal necrosis or any other significant virus, (ii) witches' broom and blackleg, (iii) deviations of variety and type, and (iv) groundkeepers.
Pre-basic 4	(5) The seed potatoes shall— (a) be derived from— (i) a stock which was classified as pre-basic 3 in the year preceding the planting of the crop; or (ii) such other seed potatoes as shall have been notified in writing by the Secretary of State as being acceptable to her; and (b) have been kept free from— (i) potato viruses A, M, S, X, Y, leafroll, potato mop top virus, tobacco rattle virus and tobacco veinal necrosis or any other significant virus, (ii) witches' broom and blackleg, (iii) deviations of variety and type, and (iv) groundkeepers.