# Tuberculosis in Cattle and Bison; State Designations
> **Animal and Plant Health Inspection Service** · Interim rule and request for comments. · Published 1999-11-01 · Effective 1999-10-20 · 64 FR 58769
## Document
- **Document number:** 99-27746
- **Category:** other
- **Sub-agency:** Animal and Plant Health Inspection Service
- **Federal Register citation:** 64 FR 58769
- **CFR reference:** 9 CFR 77
- **Publication date:** 1999-11-01
- **Effective date:** 1999-10-20
- **USDA docket:** Docket No. 99-008-1
## Abstract

We are amending the bovine tuberculosis regulations to allow zones within a State to be assigned different risk statuses and to clarify the conditions for assigning a particular risk status for bovine tuberculosis. We are also amending the regulations to increase the amount of testing that must be done before certain cattle and bison may be moved interstate. These changes are necessary to help prevent the spread of tuberculosis and to further the progress of the domestic bovine tuberculosis eradication program.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/11/01/99-27746/tuberculosis-in-cattle-and-bison-state-designations)
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