This report reflects available information about the native language standardized assessments in use by the 50 states, the District of Columbia, and Puerto Rico. The report reflects the growing interest and commitment of policy makers, state education agencies (SEAs), and the public to provide English learners (ELs) equitable access to standardized tests. It also reflects the requirement in the Every Student Succeeds Act (ESSA) that states, "identify languages other than English that are present to a significant extent in their participating student populations," to indicate the languages for which annual student achievement tests are not available, and to "make every effort" to develop such assessments. This report includes an account of states currently using native language assessments (NLAs), the subject areas tested, and the languages of these assessments. The report takes a close look at Puerto Rico and the four states (Texas, California, New Mexico, Colorado) that provide Spanish language arts assessments and additional standardized content assessments in languages other than English. The information for this report was gathered from state ESSA plans retrieved on March 13, 2018, and from SEA websites.