This document discusses the language policy and legal bases of Mother Tongue-Based Multilingual Education (MTB-MLE) in the Philippines. It provides the historical background of language policy from 1946 to 2004. It also outlines the key provisions in the Philippine Constitution and laws like the Enhanced Basic Education Act of 2013 that establish Filipino and English as the official languages and mandate the use of mother tongue as the primary medium of instruction in kindergarten to grade 3. The document specifies the major languages to be offered in schools and clarifies the implementation of language learning areas from grades 1 to 2.