Permits are key and from what my deep DD has found is that following their requirements is causing one tire pyrolyser in TX plenty trouble! Ref - please see "Law suit": Texas development (2013) blog.pyrolysisoil.net/zero-waste-tire-processor-targets-environmental-scourge/ Law suit http://www.tirebusiness.com/article/20140311/NEWS/140319974/texas-files-suit-vs-tire-recycling-firm http://investorshub.advfn.com/boards/read_msg.aspx?message_id=115104634