We explore the classification accuracy of a parent and teacher report measure, the Inventory to Assess Language Knowledge (ITALK), to screen for developmental language disorder (DLD) in bilingual children. Participants were 120 Spanish-English bilingual children with typical development (TD) and 19 bilingual children with DLD, ranging in age from 5 to 8 years old. Parents' and teachers' reports correlated moderately with each other and significantly predicted children's performance on language-specific measures of morphosyntax and semantics. Results yielded sensitivity of 0.90 and specificity of 0.63 when using a composite of parent and teacher reports in Spanish and English. Examination of structure loadings in follow-up analyses by grade showed that teachers' report of English and parents' report of Spanish were the strongest predictors of impairment in kindergarten. In second grade, the strongest predictors were parent and teacher reports in English. Implications for referral and identification are discussed.