WAC 16-302-855

Isolation requirements for industrial hemp seed certification.

Isolation requirements for industrial hemp seed production are as follows:
(1) Isolation areas must be kept free of any harmful plants that can cause contamination. Not more than one plant per eleven square feet of harmful contaminants (species that can cross pollinate with the inspected crop) is permitted within the required isolation distance(s) adjacent to the inspected crop. The conditions of each crop are assessed by the department, which may alter this standard, usually by reducing the number of contaminant plants permitted per square yard, according to identified contamination risks.
(2) Foundation, registered and certified industrial hemp must be isolated from any marijuana production licensed by the liquor and cannabis board by a distance of fifteen miles.
(3) Industrial hemp seed production crops for certification must be isolated from all other industrial hemp varieties or fields not meeting the varietal purity requirements for certification as follows:
Inspected Crop
Isolation Factor
Isolation Distance in Feet
Dioecious type:
Foundation and Registered
Different varieties of industrial hemp
16,150
Noncertified industrial hemp
16,150
Lower certified class of same variety
6,460
Same class of same variety
3
Dioecious type:
Certified
Different varieties of industrial hemp
16,150
Noncertified industrial hemp
16,150
Certified class of the same variety
3
Monoecious type and hybrids:
Foundation and Registered
Dioecious variety of industrial hemp
16,150
Noncertified industrial hemp
16,150
Different varieties of monoecious or female hybrid
6,460
Certified class of same variety
3
Monoecious type and hybrids:
Certified
Dioecious variety of industrial hemp
3,230
Noncertified industrial hemp
3,230
Different varieties of monoecious or female hybrid
646
Certified class of same variety
3
[Statutory Authority: RCW 15.120.030(3), 15.49.021, 15.49.310, and chapter 34.05 RCW. WSR 17-08-090, § 16-302-855, filed 4/5/17, effective 5/6/17.]