# Avermectin B1; Pesticide Tolerance
> **Rule** · Final rule. · Published 2000-12-21 · Effective 2000-12-21 · 65 FR 80353
## Document
- **Document number:** 00-32569
- **Category:** pesticide
- **Federal Register citation:** 65 FR 80353
- **CFR reference:** 40 CFR 180
- **Publication date:** 2000-12-21
- **Effective date:** 2000-12-21
- **EPA docket:** OPP-301082
## Abstract

This regulation establishes a tolerance for combined residues of avermectin B<INF>1</INF> and its delta-8,9-isomer in or on celeriac (roots and tops) at 0.05 parts per million (ppm). The Interregional Research Project Number 4 (IR-4) requested this tolerance under the Federal Food, Drug, and Cosmetic Act, as amended by the Food Quality Protection Act of 1996.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2000/12/21/00-32569/avermectin-b1-pesticide-tolerance)
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