Residential recovery treatment, which is a service that provides a planned regimen of evidence-based evaluation, observation, medical monitoring, and evidence-based rehabilitative services and interventions such as pharmacotherapy, behavioral therapy, and counseling provided in a structured, live-in environment within a nonhospital setting on a 24-hours-per-day, 7-days-per-week basis. (C) Limitation Substance use disorder treatment providers shall not include— (i) prevention only providers