§558.4. Requirement of a medicated feed mill license.

A feed manufacturing facility must possess a medicated feed mill license in order to manufacture a Type B or Type C medicated feed from a Category II, Type A medicated article.

The manufacture of the following types of feed are exempt from the required license, unless otherwise specified:

The use of Type B and Type C medicated feeds shall also conform to the conditions of use provided for in subpart B of this part.

This paragraph identifies each drug by category, the maximum level of drug in Type B medicated feeds, and the assay limits for the drug in Type A medicated articles and Type B and Type C medicated feeds, as follows:

When drugs from both categories are in combination, the Category II requirements will apply to the combination drug product.