Substitute Senate Bill No. 1391 aims to enhance the transparency of multilingual learner data in Connecticut's public school system by amending section 10-10a of the general statutes. The bill requires the state-wide public school information system to track and report additional data, including students' primary languages, their academic progress in bilingual education programs, and other relevant metrics. It also mandates the inclusion of mastery examination results for bilingual education students to facilitate monitoring of their academic performance. Additionally, the bill emphasizes the importance of collecting data on student enrollment and graduation from higher education institutions for those assigned a unique student identifier.

Moreover, the bill introduces a written bill of rights for parents or guardians of multilingual learners by amending section 10-17o. This bill of rights guarantees protections such as the right to enroll students without immigration documentation, access to translation services, and participation in bilingual education programs. It ensures that parents receive information about their child's progress in English language development and access to publicly available data regarding bilingual education programs. The changes are set to take effect on January 1, 2026, and are designed to improve the educational experience and support for multilingual learners and their families, without imposing any fiscal impact on the state or municipalities.