At the time of their initial publication, the CCSS did not include a correlating set of English
language proficiency development (ELPD) standards for students learning English. Since then,
several related initiatives that address the role of English language proficiency have been
started. The purpose of this issue brief is to provide a comprehensive overview of the policies
behind the CCSS and to outline some of the initiatives now in place to address the needs of
English language learners (ELLs) in relation to the CCSS.