== Tax credit == 

 Apparently thermal depolymerization now has the tax credit. 

 http://forums.biodieselnow.com/topic.asp?TOPIC_ID=829&whichpage;=34 

 I haven't put this in the article because it's not a direct source, it's just someone mentioning it on a forum, and the original source is a 1700 page bill that I have no ability to examine myself.  Can anyone confirm it?