These language testing guidelines--grouped according to the five categories of the oral language interview: grammar, comprehension, pronunciation, vocabulary, and language utilization (communicative competence)--are presented for the language proficiency examiner. Brief guidelines for assessment are given for each of five levels of proficiency, except for language utilization, in which characteristics of high and low competence are described for seven dimensions of language behavior. Suggestions are made for weighting the five categories, selecting test formats, and preparing the examiner of self-instructional language programs. (MSE)