Cal. FAC § 14538
This is the official text of Cal. FAC § 14538, part of California’s Food and Agricultural Code — regulates farming, food safety, and agricultural commerce.
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Official statutory text
“Hydroponics” means a system in which water soluble primary or secondary plant nutrients or micronutrients, or combination thereof, are placed in intimate contact with the plant’s root system, being grown in a water or an inert supportive medium which supplies physical support for the roots but which does not add or subtract primary or secondary plant nutrients or micronutrients, or both.
Status: in_force · Read it on the official government site
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