‘House Bill 2793, proposed by Rep. Katie Hobbs, D-Phoenix, would require  advertisers who alter or enhance a photo to put a disclaimer on that ad alerting  customers that “Postproduction techniques were made to alter the appearance in  this advertisement. When using this product, similar results may not be  achieved.”‘

http://www.azcentral.com/news/articles/2012/02/14/20120214arizona-bill-takes-aim-airbrushed-women-ads.html