This is an interpretive manual designed to accompany the Test of Proficiency in English as a Second Language, a comprehensive test assessing production and perception skills in written and spoken English and intended for use in Grades 4-6 in Bureau of Indian Affairs schools. The manual is divided into three sections. Section one discusses English proficiency and the ways in which information from test results is best incorporated into decisions affecting individuals and Groups. Section two contains the information about TOPESL, TOPESL scores, and the norms population necessary for interpretation of scores and differences between scores. Section three contains detailed information about the development of TOPESL, and about the development of statistical information for TOPESL. Statistical data are presented in tables, and appendices list participating schools. (Author/AM)