This study examined the long-term use of the Standard Triple P parenting program in Portugal’s child protection system, five years after 16 practitioners were accredited. Through semi-structured interviews with practitioners, organizational managers, and system-level representatives, the research found that only five practitioners continued using the program, with organizational factors exerting the strongest influence on both sustainers and non-sustainers. Using a SWOT analysis and the Integrated Sustainability Framework, the study identified key strengths, weaknesses, opportunities, and threats affecting program sustainability, highlighting the need for deliberate planning to ensure evidence-based parenting programs are maintained over time and effectively reach families in need.
