 Labeling regulations have been modified to provide for mandatory labeling of ingredients plus voluntary labeling, termed precautionary allergen labeling (PAL), also known as “may contain” statements, for possible, inadvertent, trace amount, cross-contamination during production.PAL labeling can be confusing to consumers, especially as there can be many variations on the wording of the warning.PAL is regulated only in Switzerland, Japan, Argentina, and South Africa.