The term community-based heritage language school means a nonprofit, community-based school that offers classes for students in pre-kindergarten through grade 12, for the purpose of maintaining and teaching the language and culture of non-English speaking communities. (2) Dual language program The term dual language program means— (A) with respect to pre-kindergarten and elementary school, a bilingual education program in which students receive instruction in English and a language other than English for at least half of the instructional school day for each year of pre-kindergarten and elementary school, with the goal of achieving proficiency in both languages