It appears that is is an expanded version of the document created orginally in order to facilitate changes in the treatment of mental health and better define what an IMD needs and is.
This is a calfornia department of health document, therefore it appears to apply specifically to that states definition of an IMD.
It defines where we would take psych transports. Otherwise it does not directly address first responders.
I really don't know how to find this information. I can update this after asking you about it tomorrow.
I could barely find anything on this in particular. In general, there have been more and more support for a stronger mental health system in the United States and while this policy furthers development, some people believe that there is much more that is needed.
The policy defines what an Institute for Mental Disorders is and and payment exclusions for those under medicaid (<21 or 22 y/o or >65 y/o).
Vulnerable populations for mental health issues seem to be covered by pay exclusion. Those younger than 21 or 22 are included, which appear to be the most at-risk for mental illness.
It defines and provides provisions for Intitutes of Mental Disorders where public mental health would be addressed. It also allows for pay exclusion to those of certain ages, allowing for more treatment to those that may be more at-risk.