"Every year, I am afraid to say, seems to harbour at least one student who thinks that he or she can get around the Wizarding Examinations Authority's rules. I can only hope that it is nobody in Gryffindor."
-- Professor McGonagall (OP31)
A section probably within the Ministry of Magic with responsibility for administering the O.W.L.s and N.E.W.T.s to Hogwarts students every year
- headed by Griselda Marchbanks
- includes Professor Tofty
Not sure if this is actually a Ministry organization, but since the Ministry clearly holds authority over Hogwarts it seems likely that this body is part of the Ministry of Magic. They administer the O.W.L. and N.E.W.T exams for students which are given in June every year. Members travel to Hogwarts and test individual students for the practical examinations. (OP31)
The theory portion of the O.W.L. test is proctored by Hogwarts staff members (Flitwick administered the Defence Against the Dark Arts exam twenty years ago, while McGonagall proctored the Charms O.W.L. for Harry's class). (OP31)
The Wizarding Examinations Authority also verifies the results for the W.O.M.B.A.T. tests (JKR-W3).