Initial evaluation of an advanced access clinic developed at a VA medical center (VAMC) found decreased Mental Health wait times and improved quality of care for veterans with depression. Subsequently, modified advanced access models were implemented at affiliated community-based outreach clinics (CBOCs). By comparing each site, we sought to determine whether less resource-intensive models could improve care to the same degree. We assessed contributions of the model's components to the improvement of care (i.e., wait times and depression treatment adequacy). The modified advanced access models led to significant improvements, although no such improvements were seen at 2 control sites. Six features related to rapid access, short-term treatment, and barrier-free access to mental health services accounted for most of the observed improvements. CBOCs can implement limited advanced mental health access models and derive similar improvements to those seen in more extensive models at the VAMCs to which they are affiliated.