Because of the recent Lau vs. Nichols decision by the Supreme Court, school districts will be looking for various instruments to determine language functionality in bilingual students. Nine tests are reviewed: the Leiter International Performance Scale (LIPS), the Michigan Oral Language Productive Tests Structured Response, the Michigan Oral Language Productive Test, the El Paso Public School Oral Language Dominance Measure, the Bilingual Syntax Measure, three Functional Tests of Oral Proficiency, the Oral Placement Test for Adults, and the Skoczylas Bilingual Tests and Measures. Each is described briefly, and its strengths and weaknesses are listed. (BW)