revising with williams

I think sentence 1a. is "unclear" and as Williams would say, "make[s] us work harder than we think we ought to." (18)
1a. The catalog requirements in effect at the time of the student’s initial registration at a college
or University or the requirements of a subsequent catalog, including those in effect at the time of the student’s graduation, may be used to complete graduation requirements.

1b. When a student registers at a college or University they are to follow the current catalog requirements or what is in effect at time of graduation to satsify graduation requirements.

As Williams writes, sentence 2b. places the subject "chatacter" in the correct place as compard to sentence 2a.

2a.EMU’s perspective has also grown, not only in on-campus program development, but also in online courses offered through the Office of Extended Programs.

2b. The Office of Extended Programs expanded EMU's perspective thru on-campus program development and on-line courses.

Sentence 3b. is more precise and to the point while 3a. repeats information already stated within the paragraph.

3a. Extended Programs dissolves traditional campus boundaries through collaborative programs that extend the education, service and applied research of Eastern Michigan University to benefit local, national and international communities and organizations

3b. Extended Programs dissolve traditional campus boundaries and expands them to the local, national and international communitites.