Abstract Trauma knowledge and skills are needed to support relational safety for children in out-of-home care and birth family contact is a particular area where trauma-informed approaches are critical. Mixed methods were used to understand the application of trauma-informed approaches to contact in New South Wales, Australia. A total of 118 caseworkers and 15 organisational leaders took part in an anonymous survey or semi-structured interview. Descriptive statistics and thematic analysis were completed. Results indicated that caseworkers were confident in their knowledge of trauma and ability to protect children at contact but not to explain trauma to carers or manage conflict between carers and birth relatives. Confusion about how to deliver trauma-informed practice hampered knowledge-to-practice translation. Staff training and supervision were used to build workforce skills but were not evaluated and no strategies to reduce vicarious trauma were identified. Strategies to promote psychological safety and improve cultural safety for Aboriginal children and families were in their infancy. The study demonstrates that the out-of-home-care sector needs a community of practice where it can test, implement and share promising strategies for improving relational safety and where adult and child trauma survivors are empowered to inform and lead new approaches to contact.