# Tuberculosis in Cattle and Bison; State and Zone Designations
> **Animal and Plant Health Inspection Service** · Interim rule and request for comments. · Published 2000-06-28 · Effective 2000-06-22 · 65 FR 39780
## Document
- **Document number:** 00-16315
- **Category:** other
- **Sub-agency:** Animal and Plant Health Inspection Service
- **Federal Register citation:** 65 FR 39780
- **CFR reference:** 9 CFR 77
- **Publication date:** 2000-06-28
- **Effective date:** 2000-06-22
- **USDA docket:** Docket No. 00-055-1
## Abstract

We are amending the bovine tuberculosis regulations regarding State and zone risk classifications to remove the split-State status of the State of Michigan and to classify the entire State as nonmodified accredited. This action is necessary to help prevent the spread of tuberculosis because Michigan no longer meets the requirements for split-State status.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2000/06/28/00-16315/tuberculosis-in-cattle-and-bison-state-and-zone-designations)
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