Pen, here's the website for you from Oregon Mental Health and Addiction Services. Basically, any provider in Oregon that receives state funding has to prove to OMHAS that they are using evidence-based practices, thanks to a bill passed by the Senate in 2003. OMHAS's website has several documents that outline what that means to them:
The main site:
http://egov.oregon.gov/DHS/mentalhealth/ebp/main.shtml
And the PDF with OMHAS's definition of evidence-based practices:
http://egov.oregon.gov/DHS/mentalhea...definition.pdf