The name "caviar" unqualified may be applied only to the eggs of the sturgeon prepared by a special process. Fish roe prepared from the eggs of other varieties of fish and prepared by the special process for caviar must be labeled to show the name of the fish from which they are prepared, for example, "whitefish caviar." All words in the name should be in type of substantially the same size and prominence. If the product contains an artificial color, it must be an approved color and its presence must be stated on the label conspicuously. No artificial color should be used which makes the product appear to be better or of greater value than it is. The label should bear a statement of ingredients listed by their common or usual names in descending order of predominance because no standard of identity has been established for any form of caviar.
Source: Excerpted from Requirements of Laws and Regulations Enforced by the U.S. Food and Drug Administration (1997).