1. (a) When biochar appears on the label in an ingredient list, the feedstock shall be designated by prefixing the term biochar with the feedstock from which it was produced. When more than one feedstock is used, all feedstocks greater than 10% shall be listed in order of decreasing amounts present.

   1. (b) A laboratory analysis for total carbon is required for registration to verify that the ingredient meets the definition of biochar as stated in § 14513.5 of the FAC. The laboratory analysis results shall be no more than five (5) years old at the time of registration/renewal approval.

Note: Authority cited: Sections 407, 14502, 14601 and 14631, Food and Agricultural Code. Reference: Sections 14513, 14513.5 and 14631, Food and Agricultural Code.

History

1. Renumbering and amendment of former section 2306 to section 2305 and renumbering and amendment of former section 2307 to section 2306 filed 8-2-91; operative 8-2-91 pursuant to Government Code section 11346.2(d) (Register 92, No. 7).

2. Amendment of section heading, repealer and new section and amendment of Note filed 2-23-2022; operative 4-1-2022 (Register 2022, No. 8).

3. Amendment of section and Note filed 11-14-2025; operative 11-14-2025 pursuant to Government Code section 11343.4(b)(3) (Register 2025, No. 46).