Research on school-based mindfulness programs (SBMPs) suggests that a variety of factors may impact successful implementation and sustainability including, alignment with school mission, support and training of educators, community perception, curricular integration, and time. This presentation centers on investigating challenges and supports for implementation of the Peace of Mind (PoM) program, an SBMP used in multiple East Coast urban K-8 schools; these schools were in a variety of different stages of curriculum adoption and implementation. Interviews/focus groups (n=28) and mixed-methods surveys (n=23) were collected from PoM program staff, teachers, administrators, and specialized staff. The interview protocol was based on the Kitson et al. (1998) PARiHS framework which focuses on context (e.g., culture), facilitation (e.g., training) and evidence (e.g., benefits). Data was coded thematically to understand implementation and the factors that impact using PoM. Several challenges were indicated including lack of time for implementation, missing resources, and language barriers. Noted supports included program alignment, personal mindfulness practice, teachers’ familiarity with PoM, and administrative support. This presentation will also report on practices that have helped others to successfully integrate an SBMP into their schools with consistency and sustainability.