<P> Several federal agencies are involved in the business of warning - labels, including the Consumer Product Safety Commission, the Food and Drug Administration, and the Federal Bureau of Investigation . FBI warning labels have been appeared since 1975 in rented movies warning people about video piracy . </P> <P> There are three levels of warning, CAUTION, WARNING and DANGER: </P> <Ul> <Li> Caution indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury . </Li> <Li> Warning indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury . </Li> <Li> Danger indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury . This word is limited to the use in the most extreme situations . </Li> </Ul> <Li> Caution indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury . </Li>

When did they start putting warning labels on dip