Before the EPA can adjust the policy on chromium levels in drinking water, they have to release a final human health assessment.[1] The EPA mentions two specific documents that are currently under review to determine whether or not to adjust the current drinking water standard for chromium.[41] The first study the EPA mentioned that is under review is a 2008 study conducted by the Department of Health and Human Services National Toxicology Program. This study looks at chronic oral exposure of hexavalent chromium in rats, and its association with cancer. The other study mentioned is a human health assessment of chromium, titled Toxicological Review of Hexavalent Chromium.