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# Standardized Medicated Feed Assay Limits Guide
- URL: https://www.fdaweb.com/standardized-medicated-feed-assay-limits-guide/
- Published: 2020-02-27T12:00:00.000Z
- Updated: 2026-09-14T16:04:53.000Z
- Author: David McFarland
- Tags: FDA Policy/General, #legacy-id-D5146192

*Federal Register* notice: FDA has made available a draft guidance for industry #264 entitled “Standardized Medicated Feed Assay Limits.” The agency says that standardized medicated feed assay limits allow predictability in the review process as sponsors can determine early in the drug development process what assay limits they should expect to meet for medicated feeds used in target animal safety, effectiveness, chemistry, manufacturing, and controls, bioequivalence, and human food safety residue chemistry studies. To view the notice, click [here](https://www.govinfo.gov/content/pkg/FR-2020-02-27/pdf/2020-03943.pdf?ref=fdaweb.com).