ATCP 156.12(1) (1) Grade requirements. To qualify for the badger state brand, a lot of certified seed potatoes shall meet all of the following requirements:

ATCP 156.12(1)(a) (a) The college shall certify the lot under subchapter II.

ATCP 156.12(1)(b) (b) All potatoes in the lot shall be of the same variety, subject to a tolerance of 0.25% for varietal mixture. The tolerance shall be applied according to s. ATCP 156.10 (6).

ATCP 156.12(1)(c) (c) All potatoes in the lot shall comply with size standards in subs. (2) to (4), subject to tolerances specified in subs. (2) to (4). Tolerances shall be applied according to s. ATCP 156.10 (6).

ATCP 156.12(1)(d) (d) All potatoes in the lot shall be fairly well shaped.

ATCP 156.12(1)(e) (e) No potatoes in the lot may be frozen at the time of inspection.

ATCP 156.12(1)(f) (f) The lot shall be free of all the following:

ATCP 156.12(1)(f)1. 1. Blackheart.

ATCP 156.12(1)(f)2. 2. Bacterial ring rot.

ATCP 156.12(1)(f)3. 3. Nematode or tuber moth injury.

ATCP 156.12(1)(f)4. 4. Defects in excess of tolerances specified in sub. (5). Tolerances shall be applied according to s. ATCP 156.10 (6).

ATCP 156.12(1)(f)5. 5. Other damage.

ATCP 156.12 Note Note: See definition of “damage” in s. ATCP 156.01 (4). “Damage” includes, but is not limited to, “serious damage” as defined in s. ATCP 156.01 (31).

ATCP 156.12(2) (2) Minimum diameter.

ATCP 156.12(2)(a) (a) Except as provided in par. (b), not more than 3% of the potatoes in any lot of badger state brand certified seed potatoes may have a diameter smaller than 1½ inches or, if the seller guarantees a different minimum diameter, the minimum diameter guaranteed.

ATCP 156.12(2)(b) (b) If a seller guarantees a minimum diameter under par. (a) of at least 2¼ inches, not more than 5% of the potatoes in the lot may have a diameter that is smaller than the guarantee.

ATCP 156.12(3) (3) Minimum weight.

ATCP 156.12(3)(a) (a) Except as provided in par. (b), not more than 3% of the potatoes in any lot of badger state brand certified seed potatoes may have a weight less than the minimum weight, if any, guaranteed by the seller.

ATCP 156.12(3)(b) (b) If a seller guarantees a minimum weight under par. (a) of at least 5 ounces, not more than 5% of the potatoes in the graded lot may have a weight that is less than the guaranteed minimum.

ATCP 156.12(4) (4) Maximum size. Not more than 10% of the potatoes in any lot of badger state brand certified seed potatoes may have any of the following:

ATCP 156.12(4)(a) (a) A weight of more than 12 ounces or, if the seller guarantees a different maximum weight, the guaranteed maximum.

ATCP 156.12(4)(b) (b) A diameter that exceeds the maximum guaranteed by the seller, if the seller guarantees a maximum diameter.

ATCP 156.12(5) (5) Defect tolerances. A lot of badger state brand certified seed potatoes may not contain any of the following defects in excess of the following tolerances, specified as a percentage by weight of affected potatoes compared to weight of potatoes in the lot:

ATCP 156.12(5)(a) (a) Serious damage from hollow heart: 10%.

ATCP 156.12(5)(b) (b) Damage from defects listed in s. ATCP 156.11 (1) or (2), other than sprout damage: 5%.

ATCP 156.12(5)(c) (c) Sprout damage: 10%.

ATCP 156.12(5)(d) (d) Late blight tuber rot: 1%.

ATCP 156.12(5)(e) (e) Serious damage from dry- or moist-type fusarium tuber rot: 2%.

ATCP 156.12(5)(f) (f) Damage from freezing, soft rot or wet breakdown: 0.5%, except that the tolerance is 1% if the potatoes are inspected en route to or at the point of receipt by the potato buyer.