Wash. Admin. Code § 16-302-700
(1) Land, isolation, and field standards for buckwheat seed certification are:
| field STANDARDS | ||||
| class | land STANDARDSminimumyears | isolationminimumfeet | fieldoff-typemaximum | other cropmaximum |
| Foundation | 2* | 2,640 | 1:10,000 | None found |
| Registered | 1* | 1,320 | 1:5,000 | 1:30,000 |
| Certified | 1* | 660 | 1:2,000 | 1:10,000 |
| * Waived if previous crop was the same variety and equal or higher class of Certified seed. |
(2) Seed standards for buckwheat seed certification are:
| class | off-typemaximumseeds/lb | pure seedminimum % | inertmaximum % | other cropmaximumseeds/lb | weedmaximum % | germinationminimum % |
| Foundation | 0.5 | 99.00 | 1.00 | 0.5 | 0.05 | 85.00 |
| Registered | 1 | 99.00 | 1.00 | 1 | 0.05 | 85.00 |
| Certified | 3 | 99.00 | 1.00 | 3 | 0.10 | 85.00 |
[Statutory Authority: RCW 15.49.005, [15.49].021, [15.49].310, [15.49].370, 15.140.030, and chapter 15.49 RCW. WSR 25-09-035, s 16-302-700, filed 4/9/25, effective 5/10/25. Statutory Authority: RCW 15.49.005, 15.49.081, 15.49.310, 15.49.370(3) and chapter 17.24 RCW. WSR 00-24-077, § 16-302-700, filed 12/4/00, effective 1/4/01.]