; and (B) there is no finding by the Food and Drug Administration that such ingredients are not GRAS. (2) Voluntary notification A pet food manufacturer is not required to notify the Food and Drug Administration of GRAS ingredients used in pet food, but may voluntarily notify the Food and Drug Administration of such GRAS ingredients that have not previously been recognized by the Food and Drug Administration as GRAS for use in pet food. (d) Timely review Not later than 90 days after receipt of a pet food ingredient submission, the Secretary shall review such submission and issue an action letter that— (1) approves such submission or, in the case of a GRAS ingredient notification, does not object to use; or (2) sets forth— (A) the specific deficiencies in such submission; and (B) where appropriate, the actions necessary— (i) for such submission to be approved; or (ii) in the case of a GRAS ingredient notification, to resolve any concerns of the Secretary. (e) Ingredients sometimes present (1) In general Pet food shall not be treated as misbranded by reason of stating in the pet food ingredient list on the product label that an ingredient of a type described in paragraph (2) is sometimes, but not always, present in the pet food. (2) Types of ingredients Paragraph (1) applies with respect to the following types of ingredients: (A) Fat or oil ingredients. (B) Flavor ingredients. (C) Grain ingredients (including grain protein ingredients). (3) Language to be used For an ingredient in pet food to be labeled as sometimes present for purposes of paragraph (1), such ingredient shall be identified by— (A) words such as or , and/or , or contains one or more of the following: