Indiana Administrative Code
Title 355 - STATE CHEMIST OF THE STATE OF INDIANA
Article 6 - ANIMAL FOODS
Rule 1 - General Provisions
Section 1-8 - Nonprotein nitrogen

(a) Urea and other nonprotein nitrogen products defined in the official publication of the Association of American Feed Control Officials are acceptable ingredients only in commercial feeds for ruminant animals as a source of equivalent crude protein. If the commercial feed contains more than eight and seventy-five hundredths percent (8.75%) of the equivalent crude protein from all forms of nonprotein nitrogen, added as such, or the equivalent crude protein from all forms of nonprotein nitrogen, added as such, exceeds one-third (a) of the total crude protein, the label shall bear adequate directions for safe use of feeds and a precautionary statement, "CAUTION: USE AS DIRECTED". The directions for use and the caution statement shall be in type of such size so placed on the label that they will be read and understood by ordinary persons under customary conditions of purchase and use.

(b) Nonprotein nitrogen defined in the official publication of the Association of American Feed Control Officials, when so indicated, are acceptable ingredients in commercial feeds distributed as feed for nonruminant animals as a source of nutrients other than equivalent crude protein. The maximum equivalent crude protein from nonprotein nitrogen sources when used in nonruminant rations shall not exceed one and twenty-five hundredths percent (1.25%) of the total daily ration.

(c) On labels such as those for medicated feeds which bear adequate feeding directions and/or warning statements, the presence of added nonprotein nitrogen shall not require a duplication of the feeding directions or the precautionary statements as long as those statements include sufficient information to ensure the safe and effective use of this product due to the presence of nonprotein nitrogen.