Cal. Code Regs. tit. 18, § 1588
(b) Fertilizer.
(2) Application of Tax. Tax does not apply to sales of fertilizer to be applied to land or in foliar application the products of which are to be: (a) used as food for human consumption, (b) used as feed for any form of animal life of a kind the products of which ordinarily constitute food for human consumption, or (c) sold in the regular course of the purchaser's business.
When insecticides are mixed with fertilizer and the mixture sold, that portion of the total price allocable to the fertilizer may be excluded from the measure of the tax if the mixed product is applied to land or in foliar application the products of which are to be: (a) used as food for human consumption, (b) used as feed for any form of animal life of a kind the products of which ordinarily constitute food for human consumption, or (c) sold in the regular course of the purchaser's business.
Note: Authority cited: Section 7051, Revenue and Taxation Code. Reference: Section 6358, Revenue and Taxation Code.
1. Amendment and renumbering of former section 1988 filed 3-30-70; effective thirtieth day thereafter (Register 70, No. 14).
2. Amendment filed 10-23-85; effective thirtieth day thereafter (Register 85, No. 43).
3. Amendment of subsection (a) filed 10-19-88; operative 11-18-88 (Register 88, No. 43).
4. Amendment of subsections (a) and (b)(1)-(2) filed 12-11-92; operative 1-11-93 (Register 92, No. 50).
5. Change without regulatory effect amending subsections (a) and (b)(2) filed 3-2-99 pursuant to section 100, title 1, California Code of Regulations (Register 99, No. 10).
6. Change without regulatory effect amending subsection (a) and Note filed 12-3-99 pursuant to section 100, title 1, California Code of Regulations (Register 99, No. 49).
7. Change without regulatory effect amending subsection (a) filed 1-13-2005 pursuant to section 100, title 1, California Code of Regulations (Register 2005, No. 2).
8. Amendment of subsections (b)(1) and (b)(2) filed 2-9-2015; operative 4-1-2015 (Register 2015, No. 7).