Research and Reports
Note: Regulations change with time. These guidelines were compiled in January of 2012 and updated in May 2022. If you see something that needs updating, please send an e-mail to Colorín Colorado. For more detailed information regarding ELL guidelines and policies at the state and federal levels, please see the following:
U.S. Department of Education. Our Nation’s English Learners. Most Common Non-English Languages Spoken by English Learners.