Every labeler of agricultural or vegetable seed offered for sale in this state, or any person, as defined in Section 52256.5, who sells that seed in this state, shall annually register with the secretary to obtain authorization to sell agricultural or vegetable seed before engaging in this activity, except any of the following:
(a)
An individual grower that conditions such seed exclusively for the grower’s own planting use.
(b)
A person using agricultural or vegetable seed, or both agricultural and vegetable seed, only for purposes of planting seed increase.
(c)
Any person licensed to sell nursery stock pursuant to Chapter 1 (commencing with Section 6701) of Part 3 of Division 4, except when he or she also engages in activities as defined under Section 52257.5.