Coupled in the sense that it’s the university providing the certification as well. Contrast this with certain national school systems where local high schools p

Coupled in the sense that it’s the university providing the certification as well. Contrast this with certain national school systems where local high schools provide instruction but your final exam papers are graded by a centralized national authority, which is what provides the certification. Alternatively, going to law school but getting certified by passing the bar, which isn’t under the direct control of your law school.