# Importation of Horses From Contagious Equine Metritis-Affected Countries
> **Animal and Plant Health Inspection Service** · Interim rule and request for comments. · Published 2011-03-25 · Effective 2011-03-25 · 76 FR 16683
## Document
- **Document number:** 2011-7098
- **Category:** trade
- **Sub-agency:** Animal and Plant Health Inspection Service
- **Federal Register citation:** 76 FR 16683
- **CFR reference:** 9 CFR 93
- **Publication date:** 2011-03-25
- **Effective date:** 2011-03-25
- **USDA docket:** Docket No. APHIS-2008-0112
## Abstract

We are amending the regulations regarding the importation of horses from countries affected with contagious equine metritis (CEM) by incorporating an additional certification requirement for imported horses 731 days of age or less and adding new testing protocols for test mares and imported stallions and mares more than 731 days of age. We are taking these actions in response to incidents that prompted an investigation by an expert review panel, which identified specific weaknesses in the current regulations. This action will provide additional safeguards against the introduction of CEM through the importation of affected horses.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/03/25/2011-7098/importation-of-horses-from-contagious-equine-metritis-affected-countries)
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