# Black Stem Rust; Additions of Rust-Resistant Species and Varieties
> **Animal and Plant Health Inspection Service** · Direct final rule. · Published 2013-05-13 · Effective 2013-07-12 · 78 FR 27855
## Document
- **Document number:** 2013-11318
- **Category:** plant-animal-health
- **Sub-agency:** Animal and Plant Health Inspection Service
- **Federal Register citation:** 78 FR 27855
- **CFR reference:** 7 CFR 301
- **Publication date:** 2013-05-13
- **Effective date:** 2013-07-12
- **USDA docket:** Docket No. APHIS-2012-0108
## Abstract

We are amending the black stem rust quarantine and regulations by adding two varieties to the list of rust-resistant Berberis species and varieties and one variety to the list of rust-resistant Mahonia species and varieties. This action will allow for the interstate movement of these newly developed varieties without unnecessary restrictions.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/05/13/2013-11318/black-stem-rust-additions-of-rust-resistant-species-and-varieties)
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