CREU teams assess, assign, and answer requests for behavioral health response, engage communities to provide behavioral health public education and connection to services, and prepare public health staff, first responder personnel, and the public for response to and recovery from events impacting New York City and local communities. To be appointed to Assignment Level II and above, candidates must have: A doctorate degree from an accredited college or university with specialization in an appropriate field of physical, biological, environmental or social science and one year of full-time experience in a responsible supervisory, administrative or research capacity in the appropriate field of specialization; or.