The stimulus bill, which is likely to be signed into Law by President Obama will place more stringent guidelines on ambulance providers and covered business associates of  ambulance companies including billing services, clearinghouses, and other holders of protected health information (PHI). See this article from Page Wolfberg and Worth regarding these changes. 

Please also see the full text of what has been proposed in the American Recovery and Reinvestment Act of 2009 by clicking here.