The primary language is the language the student first learned, is spoken by the student, or in the case of student too young to speak, the language spoken most frequently by adults in the home. The primary language, also known as “native language”, should be identified only once during the course of a student's school career and should never change. For students in grades K-12, the primary language is identified at the local level from information gathered on the Home Language Survey and other indicators determined at the local level. For pre-kindergarten students, this is identified at the local level from either the "Home Language Survey" if available, or the "Child Development Services and Certification of Eligibility" form, using the "Native Language" section. If these two forms are not available, and no other reliable resource for this information is available, then use the language spoken most frequently by adults in the home.