Food and Agricultural Code section 14537


(a)

“Gypsum” means calcium sulfate dihydrate, a mineral used in the fertilizer industry as a source of calcium and sulfur which is also known as landplaster.

(b)

“Phosphatic sulfate gypsum” means a by-product of calcium dihydrate from the manufacture of phosphoric acid, also known as phosphogypsum.

Source: Section 14537, https://leginfo.­legislature.­ca.­gov/faces/codes_displaySection.­xhtml?lawCode=FAC§ionNum=14537.­ (updated Jan. 1, 1990; accessed Jun. 30, 2025).

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Jun. 30, 2025

§ 14537's source at ca​.gov