I thought I would post what it says on the site here...
How Major Food Allergens Are Listed
The law requires that food labels identify the food source of all major food allergens. Unless the food source of a major food allergen is part of the ingredient's common or usual name (or is already identified in the ingredient list), it must be included in one of two ways.
The name of the food source of a major food allergen must appear:
In parentheses following the name of the ingredient.
Examples: "lecithin (soy)," "flour (wheat)," and "whey (milk)"
– OR –
Immediately after or next to the list of ingredients in a "contains" statement.
Example: "Contains Wheat, Milk, and Soy."
Regardless of whether it is listed in ( ) or a contains statement, I want people to be aware that it is still easy to glance at the ingredients list to see if something is safe. I would still encourage others to read more thoroughly, however it is a start.