This document provides descriptors for scoring speaking ability on IELTS tests on a scale of 0 to 9. It describes the levels of fluency, coherence, lexical resource, grammatical range and accuracy, and pronunciation expected at each band score. Key aspects include the ability to speak fluently with minimal hesitation, use a wide vocabulary flexibly, employ a variety of grammatical structures with few errors, and demonstrate control of rhythm, stress and intonation. Scores at the higher levels require native-like language ability while lower scores are given for speech with frequent pauses and errors that impede clear communication.