# National Organic Program; Market Development for Mushrooms and Pet Food
> **Agricultural Marketing Service** · Final rule; delay of effective date. · Published 2025-02-10 · Effective 2025-03-21 · 90 FR 9187
## Document
- **Document number:** 2025-02411
- **Category:** organic
- **Sub-agency:** Agricultural Marketing Service
- **Federal Register citation:** 90 FR 9187
- **CFR reference:** 7 CFR 205
- **Publication date:** 2025-02-10
- **Effective date:** 2025-03-21
- **USDA docket:** Doc. No. AMS-NOP-22-0063
## Abstract

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.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2025/02/10/2025-02411/national-organic-program-market-development-for-mushrooms-and-pet-food)
---
*AI Analytics · CC0 1.0*