Growth facility isolation standards.

(1) When two or more varieties are being grown in the same greenhouse or traditional outdoor plant bed (field), there must be an eighteen-inch unplanted area between the varieties. The production area, flats, and/or containers for each variety must be clearly labeled in a manner that prevents mixing or misidentification. (2) Growers must handle transplants throughout the growing, harvesting, and transplant sales in a manner that prevents the accidental or mechanical mixture of containers of different varieties. [Statutory Authority: RCW 15.49.005 , [15.49].021, [15.49].310, [15.49].370, and 15.140.030 . WSR 21-20-101, § 16-302-910, filed 10/4/21, effective 11/4/21.]