Pronunciation - Pronunciation, stress, rhythm, and intonation are influenced by the first language or regional variation and frequently interfere with ease of understanding.

Structure - Basic grammatical structures and sentence patterns associated with predictable situations are not always well controlled.  Errors frequently interfere with meaning.

Vocabulary - Vocabulary range and accuracy are often sufficient to communicate on common, concrete, or work-related topics, but range is limited and the word choice often inappropriate.  Is often unable to paraphrase successfully when lacking vocabulary.

Comprehension - Comprehension is often accurate on common, concrete, and work-related topics when the accent or variety used is sufficiently intelligible for an international community of users.  May fail to understand a linguistic or situational complication or an unexpected turn of events.

Fluency - Produces stretches of language, but phrasing and pausing are often inappropriate.  Hesitations or slowness in language processing may prevent effective communication.  Fillers are sometimes distracting.

Interaction - Responses are sometimes immediate, appropriate, and informative.  Can initiate and maintain exchanges with reasonable ease on familiar topics and in predictable situations.  Generally inadequate when dealing with an unexpected turn of events.