Among the several forms of accommodations used in the assessment of English language learners (ELLs), language-based accommodations are the most effective in making assessments linguistically accessible to these students. However, there are significant challenges associated with the implementation of many of these accommodations. This article reviews studies that explain the impact of language factors on the assessment of ELLs, presents major forms of language-based accommodations, and discusses how computers can assist in the proper administration of these accommodations.