California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 14647

Upon the analysis of a sample of fertilizing material, the secretary shall issue a report showing the findings and indicating that the product has met the guarantee or was found to be deficient. However, the secretary, in determining whether any product is deficient in guarantee or misrepresented, may establish, by regulation, tolerances that provide allowances for variations that occur in the taking, preparation, and analysis of an official sample.