Hi Trevor,
We have a resource page called "Models/Training for Developing Trauma-Informed Care (TIC) Systems":
http://acesconnection.com/profiles/blogs/models-for-developing-trauma-informed-care-systems
There are some self assessment tools available for agencies among the various resources. Probably a good page to explore. If you perform a "CTRL F" and type in the word "assess" the pertinent resources will be highlighted.
Best, Chris/Resource admin
PS: There's a short link to that page http://tiny.cc/tic-models.