 This study proposes to introduce an adaptation of the Surgical Safety Checklist for an ambulatory care surgical program and to assess the efficacy of its adaptation and implementation on staff safety attitudes and patient outcomes. Specific ambulatory-based items will be included in the checklist and patient outcomes will be assessed using the Institute for Health Improvements Perioperative Surgical Outcomes Tool which will also be adapted for use for the ambulatory setting as well as routine follow up phone calls with patients on the 1st postoperative day. 