Adult day services are a growing and important long-term care option. ADS is an important community-based long-term care option for CGs and older adults with complex conditions requiring daily assistance. ADS provides out-of-home, supervised, group services with the goals of improving mood, well-being, and quality of life and enabling clients to remain at home for as long as possible. ADS also aims to provide CGs "respite" from day-to-day care responsibilities and is available during "normal business hours," although some offer flexible hours to meet the needs of working CGs. While some provide support groups and educational opportunities, these activities are not consistently provided, systematically integrated into routine practice, or evidence-based. Similarly, while some care planning may occur at the time of client enrollment or annually, structured, consistent contacts with CGs using standardized assessments and evidence-based approaches are not typically offered. The intervention being evaluated, ADS Plus, is evidence-driven, embedded in ADS work flow, and systematically addresses unmet CG needs that may boost ADS benefits for both CGs and older adult clients.