I could not tell you the precise level and skills required. However, the language level of each student is assessed the moment they arrive at any university that offers its programs in French. It must be said that most universities have programs in French and in English but only some are strictly French-speaking. Based on the students’ skills when they arrive at a university or college, a plan is established that will allow their language or writing abilities in French to develop. Students are supported in their university courses.
Of course, a basic knowledge of French is required. But all students who have been in immersion programs in elementary school or high school generally have the skills they need to take courses at university level.