Fostering Sustainable Quality Culture in Non-EU Engineering Education: Institutional Adaptation to ASIIN Accreditation

International accreditation has become a pivotal mechanism through which universities outside Europe seek legitimacy and alignment with global quality regimes, particularly regarding sustainable development goals (SDGs). This study investigates how non-EU universities adapt to ASIIN accreditation, focusing on its role in developing a sustainable quality culture that supports long-term educational excellence and social responsibility. Drawing on new institutionalism, the analysis views accreditation as a process of institutional change under isomorphic pressures necessary for the sustainability of quality assurance (QA). Data were derived from a triangulated dataset, including 78 publicly available final accreditation reports via the DEQAR database and expert on-site observations across multiple non-EU universities. The analysis identifies systemic challenges, such as ‘facade conformity’ in learning outcomes and fragmented QA loops, which reveal an ‘adaptive lag’ impeding the sustainable implementation of quality standards. The study concludes by proposing an “Expert-Facilitated, Institutionally-Embedded Evidence Loop” framework to bridge external compliance and internal quality enhancement, thereby ensuring the long-term viability and global relevance of engineering education in alignment with SDGs.