Field standards

1. Isolation. a. Prior to inspection, the field must be isolated from inseparable crops by a fence row, natural boundary, or by a strip at least five feet [1.52 meters] wide which is either mowed, sprayed, or uncropped. b. All buckwheat fields producing certified seed must be isolated by at least six hundred sixty feet [201.17 meters] from buckwheat fields of any other variety or fields of the same variety that do not meet the varietal purity requirements for certification. 2. Specific field standards. Maximum Tolerance Factor Foundation Registered Certified Other varieties * 1:10,000 1:5,000 1:2,000 Inseparable other crops 1:10,000 1:10,000 1:5,000 Prohibited weed seeds ** none none none *Other varieties include plants that can be differentiated from the variety being inspected, but shall not include variants characteristic of the variety. **The tolerance for prohibited or objectionable weeds, or both, in the field will be determined by the inspector.