Trauma-informed approaches within primary care can support more effective care for individuals with a history of trauma, improve patient outcomes, and increase staff satisfaction. This change package is a comprehensive toolkit developed by trauma-informed care experts and refined through pilot testing at seven primary care organizations across the United States. It outlines foundational change management strategies to create the conditions for successful change within primary care organizations, including: developing a core implementation team; ensuring continued leadership support; and conducting an organizational self-assessment.