Hello; when it comes to Classical Greek I am aware of two accredited language certifications being available:
but when it comes to Classical Latin I have not been able to find something similar. Are there to your knowledge any such certifications being offered for Latin, save for what one can get via an undegraduate degree?
The University of Kentucky, where Terence Tunberg and Milena Minkova teach, offers a nine-hour Graduate Certificate in Latin Studies (a course in prose composition or equivalent competency is a prerequisite). It is distinctive for two reasons, which not everyone will like: the courses are taught entirely in Latin (the readings are of course in Latin, but so are the class discussions and the written assignments), and they include not only classical but also medieval and Renaissance Latin.
One more thing to note about the graduate certificate at the University of Kentucky: it can be done entirely online these days, and (if I’m not mistaken) the courses are offered during summers as well.