Guest students are admitted (provided space is available) when regularly matriculated and in good standing at another regionally accredited col- lege or university. The student assumes full responsibility for determining whether or not the courses selected at this university will apply to his/her program of study.
I think this might work too:
Guest students are admitted, when space is available, when in good standing at another regionally credited college or university. The student will take full responsibility for determining whether or not the courses selected at this university will apply to his/her program of study at the main college or university.
According to our “Style” book for this course, some sentences are too hard to comprehend and we have to sort out the information in our heads before we can fully understand what the writer is trying to convey. I think that the way I rewrote the sentence could be understood more fully by a transfer student that may be reading our student catalog online. I think that for writing to be conveyed in the right way, the writer needs to write to a general audience that may not understand all “college” terms. That way, you can reach everyone that may be a guest student at this college.
I agree with Williams, simple terms are best. Not “stupid” simple, just “understandably” simple.