Coordinated Specialty Care (CSC) is a multidisciplinary team approach to providing care for young and emerging adults having their first episode of psychosis. CSC programs have expanded rapidly throughout the United States going from 12 programs in 2008 to over 160 programs a decade later. The purpose of this historical review is to document the process and conditions that led to the accelerated dissemination of these programs across the country. CSC models began in the US in the early 2000s, but nationwide expansion followed the 2008 Recovery After an Initial Schizophrenia Episode trial. As programs have grown, debates have risen about fidelity to CSC models. The challenges facing CSC programs today include lack of evidence on what are the core components of CSC and how fidelity monitoring relates to positive client outcomes.