The global pursuit of sustainable energy solutions has led to the emergence of dynamic policy and regulatory frameworks that promote the transition to clean and renewable energy sources. This chapter delves into the intricate interplay between international agreements, government initiatives, and incentive mechanisms in shaping the clean energy landscape. By examining the synergies and impacts of these components, this chapter aims to provide a comprehensive understanding of the mechanisms driving the transition toward a cleaner, more resilient energy future. The chapter introduces the international agreements such as the Paris Agreement and the Kyoto Protocol, which set the foundation for global cooperation in combating climate change and advancing clean energy adoption. These agreements underscore the significance of collaborative efforts in mitigating environmental challenges and promoting sustainable development. It delves into the pivotal role of government initiatives in driving clean energy transitions. Case studies from various countries illustrate the diverse strategies governments employ to incentivize renewable energy adoption, reduce emissions, and create sustainable energy ecosystems. Feed-in tariffs, renewable portfolio standards, tax incentives, and grants are examined as effective mechanisms that align market forces with policy goals. It underscores the importance of inclusive and equitable transitions. Policies designed to prioritize marginalized communities, ensure energy affordability, and create green jobs are showcased as crucial components of a just energy transition and emphasize the role of ongoing monitoring, evaluation, and adaptation in ensuring the effectiveness of policy frameworks. Lessons learned from successful policy implementations globally offer insights into best practices for designing and executing robust clean energy strategies.