Generally recognized as safe (GRAS) is a United States Food and Drug Administration (FDA) designation that a chemical or substance added to food is considered safe by experts under the conditions of its intended use. An ingredient with a GRAS designation is exempted from the usual Federal Food, Drug, and Cosmetic Act (FFDCA) food additive tolerance requirements. The concept of food additives being "generally recognized as safe" was first described in the Food Additives Amendment of 1958, and all additives introduced after this time had to be evaluated by new standards. The FDA list of GRAS notices is updated approximately each month, as of 2021. History On 6 September 1958, the Food Additives Amendment of 1958 was signed into law, with a list of 700 food substances that were exempt from the then-new requirement that manufacturers test food additives before putting them on the market. On August 31, 1960, William W. Goodrich, assistant general counsel of the FDA, addressed the annual meeting (16 Bus. Law. 107 1960–1961) of the FFDCA. The purpose of the meeting was the forthcoming March 6, 1961, effective date of the enforcement provisions of the "Food Additives Amendment of 1958", referred to as GRAS. Designation and list A GRAS determination can be self-affirmed or the FDA can be notified of a determination of GRAS by qualified non-governmental experts: Self-affirmed. The manufacturer of this chemical or substance had performed all necessary research, including the formation of an expert panel to review safety concerns, and is prepared to use these findings to defend its product's GRAS status. FDA Response to GRAS notification. The manufacturer has performed all the aforementioned due diligence, and submitted a GRAS notification to inform the FDA of a determination that the use of a substance is GRAS. Following evaluation, the FDA provides three possible responses: 1. FDA does not question the basis for the notifier's GRAS determination, 2. the notification does not provide a sufficient basis for GRAS determination, or 3. the FDA has, at the notifier's request, ceased to evaluate the GRAS notice. (beginning in 1998), 955 ingredient or food substances have been filed with the FDA. These petitions, submitted by sponsors or manufacturers, are reviewed for the safety evidence contained in the document. FDA posts status of the review as either without further questions (as a position of "no objection") or the petition is withdrawn by the applicant. For substances used in