NAC587.335. Requirements for isolation.

     1. Except as otherwise provided in subsections 2 and 3, the minimum distance that a field of rapeseed must be from a different variety or field of the same variety of rapeseed which does not meet the varietal purity requirements for certification is as follows:

Class Produced	Fields of Cross-    pollinated Varieties	Fields of Self-    pollinated Varieties
Foundation	1,320 feet	660 feet
Registered	1,320 feet	660 feet
Certified	660 feet	330 feet

     2. A distance of 3 miles for the production of foundation or registered seed and 2 miles for the production of certified seed is required if isolating fields of different oil or glucosinolate content.

     3. The distance of isolation between classes of the same variety may be reduced to 15 feet.

     4. If a portion of a field meets the requirement for isolation, a clear demarcation must be established between the certified and noncertified portions of the field.

     (Added to NAC by Dep’t of Agriculture, eff. 12-3-90)