Wis. Admin. Code § ATCP 40.34 – Soil or plant additives; toxic substances.

(1) No soil or plant additive may contain any substance that is toxic or injurious to plants, animals, or humans when the soil or plant additive is handled or applied under reasonably foreseeable use conditions, unless the substance and hazards are identified on the product label.
Note: See s. ATCP 40.24.
(2) No soil or plant additive may contain a metal identified in Appendix C in a concentration that exceeds the maximum allowable concentration specified for that metal in Appendix C.

History: CR 04-140: cr. Register September 2005 No. 597, eff. 10-1-05.