Recently the Council on Chiropractic Guidelines and Practice Parameters had their recommendations accepted in the National Guideline Clearinghouse.  This is a significant development, as the CCGPP collected evidence on the effectiveness of manual therapies in the treatment of several conditions.  They analyzed this and boiled it down to what can now be considered the most accepted documents in guiding chiropractic practice and procedures.
So what does this mean for you?  Essentially, you can now access these documents and see if your doctor of chiropractic is following what is generally accepted as efficacious chiropractic treatment procedures.  You can now have expectations before you see your DC, and your DC will be held to these standards.  Below you will find the link to the CCGPP website, where you can access these documents, or you can ask to borrow them when you come in for your appointment, if you are so inclined. 

http://www.ccgpp.org/