California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 14682

(a) If it contains any deleterious or harmful ingredient in sufficient amounts to render it injurious to beneficial plant life when applied in accordance with directions for use on the label, or if adequate warning statements or directions for use that may be necessary to protect plant life are not indicated on the label.

(b) If its composition falls below or differs from that which it is purported to possess by its labeling.

(c) If it contains unwanted crop seed or weed seed.

(d) If it is a threat to public safety.

(e) If an organic input material contains ingredients that, in type or amount, do not comply with the requirements of the National Organic Program standards, as specified in Part 205 (commencing with Section 205.1) of Subchapter M of Chapter I of Subtitle B of Title 7 of the Code of Federal Regulations.