Level C1 in French: Experienced user (autonomous level)

It is acquired when this knowledge is mastered:

Understand long, demanding texts and grasp implicit meanings.
Express yourself spontaneously and fluently without having to search too hard for words.
To use the language effectively and flexibly in social, professional and academic life.
Express themselves on complex subjects in a clear, well-structured way, demonstrating control of the linguistic tools of organisation, articulation and cohesion of discourse.