The Alternative Learning System (ALS) is a non-formal education program implemented by the Department of Education in the Philippines. It provides free education to out-of-school youth, adults, and other groups who cannot attend formal schooling. ALS uses modular learning materials and mobile teachers who provide flexible scheduling. It aims to give equivalency certificates to completers equivalent to elementary and high school diplomas to improve learners' opportunities. The document outlines several ALS programs that target different groups, such as literacy programs, vocational training, and education for indigenous communities.