Final rule · 2025-02411

National Organic Program; Market Development for Mushrooms and Pet Food

This document delays the effective date of the December 23, 2024, final rule that amended USDA's organic regulations to clarify standards for organic mushrooms and organic pet food. The topics addressed by the rule include mushroom substrate composition and sourcing of mushroom spawn in organic mushroom production; composting requirements for organic mushroom production; composition and labeling requirements for organic pet food; and the use of certain synthetic substances, including taurine, in organic pet food.