WAC 16-302-465. Land requirements and field standards for woody plants, forbs, and other reclamation species

(1) The life of a stand shall be unlimited as long as 75 percent of the plants present in the stand are those that were planted originally. (2) To be eligible for the production of Certified class of seed, a field must not have grown or been seeded to the same species during the previous four years for Foundation, three years for Registered, and two years for Certified. (3) A seed field inspection must be made the year of establishment and at least once each year that seed is to be harvested. This inspection will be made at a time when plant development allows for the detection of factors such as off-type varieties and weed contamination. (4) Isolation for seed production the minimum distance from a different variety or wild hybridizing populations are as follows: Minimum of isolation-feet: Class Fields of 2 acres or less Fields of more than 2 acres Foundation & Registered 400 200 Certified 200 100 Minimum of isolation-feet: Class Fields of 2 acres or less Fields of more than 2 acres Foundation & Registered 400 200 Certified 200 100 Volunteer plants may be cause for rejection or reclassification of a seed field. (5) Specific field tolerances: Maximum ratio of heads or plants Purity Foundation Registered Certified Other varieties & off-type 1/1000 1/500 1/250 Other kinds (Inseparable other species) 1/2000 1/1000 1/500 Prohibited noxious weeds None found None found None found Maximum ratio of heads or plants Purity Foundation Registered Certified Other varieties & off-type 1/1000 1/500 1/250 Other kinds (Inseparable other species) 1/2000 1/1000 1/500 Prohibited noxious weeds None found None found None found