As previously reported in a randomized controlled trial, a 4.5-hour intensive skill-building intervention in assessment and detection of symptoms of geriatric depression for homecare nurses has been developed and implemented. In addition, it has been shown that this intervention improves geriatric depression detection and increases appropriate depression referrals, leading to better patient outcomes. This article describes the rationale for each of the important components of the intervention and how the intervention was implemented in the randomized controlled trial. Survey results indicated that participating nurses found TRIAD acceptable and that the relative confidence of nurses in conducting depression screening increased 1 year after the core training sessions.