The growing number of environmental problems in the modern world call for a more effective and efficient environmental education. Local educational leaders emphasized that the enrichment of learnings about the environment can be done through co-curricular activities. Accordingly, the Youth for Environment in Schools Organization (YES-O) is the only recognized co-curricular environmental organization in the basic education that serves as a venue for students' actions and movements towards safeguarding, protecting and conserving the environment for future generations. The question is: how responsive is YES-O to the needs of the youth today? Hence, this study aimed to evaluate the implementation of the Youth for Environment in Schools (YES) Program through internal and external factors affecting it. Specifically, the study featured a SWOT analysis to determine the strengths, weaknesses, opportunities and threats of its implementation. This policy evaluation was conducted in the Schools Division of Bulacan, Philippines. With the different environmental activities mandated to the YES-O, it can be considered as a holistic approach in promoting environmental care and sustainable development, and proven to be more relevant today. From its establishment in 2003, it has been a frontrunner in empowering the youth to protect and care for the natural environment by providing relevant and meaningful activities. However, even though schools are mandated to establish YES-O, in the recent years, the monitoring and evaluation had been weak. Now, with greater focus to revive and strengthen the program, different stakeholders must be aware and take part in improving it. Issues like weak monitoring and evaluation, time constraint in the conduct of activities and uncoordinated and overlapping projects by different youth organizations must first be addressed before it can be considered truly responsive to the needs of the 21st century learners.