Dolphin safe labels are used for canned tuna to show that the fish has been caught without harming or killing dolphins. However, because there are various labels used, there are also various different restrictions imposed on the capture of tuna in order for it to deserve the related dolphin safe label, some labels imposing stricter requirements than others.

According the US Consumers Union, there is no guarantee that dolphins have not been harmed, despite the various labels. This is because there is no universal and independent verification of the dolphin-friendly claims.

References

Choice Magazine, April 2006. Eco-Labels.org, page retrieved August 6, 2007. Earthtrust.org, page retrieved August 6, 2007.