The opioid intervention court (OIC) is an innovative, pre-plea treatment court to facilitate rapid linkage to medications for opioid use disorder (MOUD) for people at risk of overdose. This study compares participants in OIC and participants with opioid use problems in a traditional drug treatment court model on (i) initiation for any substance use (SU) treatment, (ii) initiation of MOUD, (iii) number of days to MOUD initiation, and (iv) retention in the OIC program/retention on MOUD.