# 2026-12686: New Global Rules Target Worm Medicines for Chickens

2026-12686, International Cooperation on Harmonisation of Technical Requirements for Registration of Veterinary Medicinal Products; Effectiveness of Anthelmintics: Specific Recommendations for Chickens-Gallus Gallus; Guidance for Industry; Availability, is a Federal Register notice from Health and Human Services Department, Food and Drug Administration published 2026-06-24, effective 2026-06-24; PRIA reads it as touching household money (as of 2026-07-01).

- Canonical: https://policyrisk.com/federal-register/2026-12686
- As of: 2026-07-01
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-12686
- Title: International Cooperation on Harmonisation of Technical Requirements for Registration of Veterinary Medicinal Products; Effectiveness of Anthelmintics: Specific Recommendations for Chickens-Gallus Gallus; Guidance for Industry; Availability
- Type: Notice
- Agencies: Health and Human Services Department; Food and Drug Administration
- Citation: 91 FR 37988
- Published: 2026-06-24
- Effective: 2026-06-24
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-07-01

## In one line

New Global Rules Target Worm Medicines for Chickens

## Summary

The FDA just released new guidance to help companies test worm-killing medicines for chickens in a way that’s accepted worldwide. This makes it easier and faster for vets and farmers to get safe, effective treatments approved. If you’re in the animal medicine business, start using these recommendations now to save time and avoid extra costs.

## Abstract

The Food and Drug Administration (FDA or Agency) is announcing the availability of a final guidance for industry (GFI) #114 entitled "Effectiveness of Anthelmintics: Specific Recommendations for Chickens--Gallus gallus." This guidance has been developed for veterinary use by the International Cooperation on Harmonisation of Technical Requirements for Registration of Veterinary Medicinal Products (VICH). The objective of this guidance is to provide study design recommendations specific to chickens that will facilitate the universal acceptance of the generated effectiveness data to fulfill the national/regional requirements for anthelmintic drugs in animal species.

## Effects PRIA read

- Harmonized testing rules for chicken anthelmintics: benefit, medium. On June 24, 2026 the FDA announced final Guidance for Industry (GFI #114; VICH GL21) titled "Effectiveness of Anthelmintics: Specific Recommendations for Chickens--Gallus gallus." The guidance gives study design recommendations specific to chickens to help the generated effectiveness data gain univ…

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## Sources
- [2026-12686 on federalregister.gov](https://www.federalregister.gov/documents/2026/06/24/2026-12686/international-cooperation-on-harmonisation-of-technical-requirements-for-registration-of-veterinary)
- [2026-12686 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-06-24/pdf/2026-12686.pdf)

## Related
- [Previous: 2026-12685, International Cooperation on Harmonisation of Technical Requirements for Regist…](https://policyrisk.com/federal-register/2026-12685)
- [Next: 2026-12687, Notice Announcing Technical Assistance and Dissemination To Improve Services an…](https://policyrisk.com/federal-register/2026-12687)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-12686 (as of 2026-07-01).