Title I accountability requirements under the Every Student Succeeds Act (ESSA) represent the present-day instantiation of Lau, which requires schools to provide a program for English learners (ELs) that supports their meaningful engagement and to provide transparent information about EL program quality. This study uses critical policy analysis to explore whether ESSA accomplishes what it intends. Employing a parallel mixed methods design, we first analyze longitudinal data from two states to examine whether their approaches to assessing EL students' academic performance and progress support valid claims about EL achievement. Then, we analyze focus group and interview data from educators, advocates, and families in states to understand how they assess the quality of a school's EL program. Taken together, our findings highlight the need for the incorporation of multiple perspectives into the design of state accountability systems and for the development of robust data systems that facilitate the sharing of accurate and nuanced information related to EL student outcomes and opportunities.