The Intensive Outpatient Therapy (IOP) program lasts for 8 weeks, meets 3 times per week, for three hours per session. Once IOP is successfully completed the client will transition into Outpatient programming (OP). The Outpatient program lasts for 16 weeks, meets once per week, for 2 hours. There are IOP and OP programs in the morning and evening to work within your schedule.