As the implementation of the Master Plan on ASEAN Connectivity (MPAC 2025) progresses, it is important to ensure the effectiveness of the strategies to advance the 15 initiatives under the five strategic areas. To ensure robust performance management as part of the overall implementation strategy, this mid-term review (MTR) took stock of the implementation progress of MPAC 2025 to date, drew lessons learned by identifying drivers, success factors, constraints and challenges to achieve the intended outcomes. To ensure synergies, the MTR also assessed relevance of the MPAC 2025 initiatives and activities against the ASEAN Community Blueprints 2025, as well as other regional and sub-regional connectivity-related projects. It also assessed the institutional mechanisms and identify the linkages between the MPAC 2025 and relevant ASEAN sectoral work plans to make concrete and practical recommendations to boost implementation of MPAC 2025 towards the ASEAN Community Vision 2025. At the end, a set of concrete, actionable recommendations to improve overall implementation of MPAC 2025 have been identified.