You must complete all the requirements for the degree within a six-year period beginning
at the end of the calendar year in which you first enroll. You may, however, be able
to “validate” some old courses as described in the graduate catalog. Such validation, which generally involves additional readings, and must include
a written exam, is limited to 1/3 of the total credits required for the degree and
is limited to courses with a fixed content. In particular, you cannot validate directed
readings, research seminars, or thesis credit.