(a) “Tomatoes” means all tomatoes that are produced for commercial purposes and are handled within the state in fresh form, except cherry tomatoes and tomatoes grown in a greenhouse.
(b) For purposes of this section, “tomatoes grown in a greenhouse” means tomatoes grown in a fixed steel structure using irrigation and climate control, in an artificial medium that substitutes for soil.
(c) Cherry tomatoes and tomatoes grown in a greenhouse may be included in the definition of tomatoes in subdivision (a) if approved by the producers and handlers of those tomatoes pursuant to a referendum conducted in accordance with the procedures in Article 5 (commencing with Section 78690) of Part 2 of Division 22.