The food additive ethylene dichloride may be safely used in the manufacture of animal feeds in accordance with the following prescribed conditions:

1. (a) It is used as a solvent in the extraction processing of animal byproducts for use in animal feeds.
2. (b) The maximum quantity of the additive permitted to remain in or on the extracted byproducts shall not exceed 300 parts per million.
3. (c) The extracted animal byproduct is added as a source of protein to a total ration at levels consistent with good feeding practices, but in no event at levels exceeding 13 percent of the total ration.