1. (1) Isolation - A field producing any class of Certified seed must be at least 50 feet from any other variety or fields of the same variety that do not meet the varietal purity requirement for certification.

2. (2) Poor stands, poor vigor, lack of uniformity, excess weeds, or conditions which are apt to make inspection inaccurate or bring Certified seed into disfavor shall be cause for rejection. Conditions such as poor stands, excessive weeds, or insect damage that prevent varietal determination may be cause for rejection.

   Fields must be free of prickly lettuce, fanweed, and shepherds purse.

3. (3) Fields will be inspected at full bloom. Fields swathed prior to inspection are not eligible for certification.

4. (4) Field standards are as follows:

   	Maximum permitted in each class
   Purity	Foundation	Registered	Certified
   Other varieties*	1:5000	1:2000	1:1000
   Other inseparable crops	None found	0.05%	0.10%

   *	Other varieties shall be considered to include plants that can be differentiated from the variety being inspected. However, other varieties shall not include variations which are characteristic of the variety being tested.

[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 16-302-830, 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 34.05 RCW. WSR 14-20-050, § 16-302-830, filed 9/25/14, effective 10/26/14.]