ILR scale - Wikipedia
https://en.wikipedia.org/wiki/ILR_scaleThe baseline level of the scale is no proficiency, rated 0. The following describes the traits of an ILR Level 0 individual: • oral production limited to occasional, isolated words• may be able to ask questions or make statements with reasonable accuracy only with memorized utterances or formulae
ILR scale - Wikipedia
en.wikipedia.org › wiki › ILR_scaleFull professional proficiency is rated 4 on the ILR scale. A person rated at this level should have the following characteristics: able to use the language fluently and accurately on all levels and as normally pertinent to professional needs