The Australia New Zealand Food Standards Code requires labelling of all foods containing
ingredients, ingredients of compound ingredients, food additives or components of food
additives, or processing aids or components of processing aids from specified allergenic
source materials. The regulatory process allows parties to seek an exemption from the
mandatory labelling requirements of the standard if it can be demonstrated that the inclusion of material from an allergenic source is not likely to present a risk of allergic reactions in allergic consumers.

Food processing operations within one site are often carried out on the same processing line using the same equipment. This creates potential for ingredients from one product or process to be unintentionally carried over into the next product. This is called cross-contact or crosscontamination and is a particular safety issue for consumers with a known food allergy. These unintentionally carried over ingredients are not required to be on the food label which poses a risk to food allergic consumers.