In the May 4, 2017, Federal Register, FDA amended the food additive regulations to no longer provide for the use of potassium perchlorate as an additive in closure-sealing gaskets for food containers because this use has been abandoned. This action, taken in response to a petition filed by Keller and Heckman LLP on behalf of the Society of the Plastics Industry, Inc., means that use of potassium perchlorate covered by the regulation is no longer authorized.

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