I have 18 semester hours through LSU's distance learning program (15 ACCT; 3 FIN).

I provide LSU the information regarding my proctor (name, position, school, address, etc.) and LSU, upon my completing and submitting the last lesson the upcoming test will cover, sends an exam packet to my proctor.  That is, if Exam I covers the material in the first 5 lessons, upon submission of the lesson 5 homework, LSU sends out the exam packet.

In my situation, I use a Resource Coordinator at a local college campus.  LSU allows approximately 30 days from the time they send the exam packet to the proctor for you to contact the proctor and arrange to take the exam.  If the proctor has not heard from you within the 30 days, the proctor returns the exam to LSU.  30 is generally ample time to study/review, and pick a convenient date to go in and take the exam.

Keep in mind, "on-line" is something of a misnomer in the context of LSU's program in that it is NOT asynchronous learning with streaming video of lectures, interaction with classmates, etc. other aspects of true on-line classes I've had.  On-line these days generally means "virtual."  In LSU's context, the only thing on-line entails (at least with the classes I've had) is you can find directions as to what chapts. to read, what questions to answer, a few paragraphs about the highlights of the lesson, and submit your lesson.

If you have an ACCT degree and are merely looking to attain the 150 hours, you likely have had most (probably not all) of LSU's ACCT offerings.  If so, they have numerous other courses as well--math (all the way up to some pretty heavy duty stuff); foreign language (about 15 - 20 hrs in each of 3 or 4 languages); social "sciences;" broad selection of disciplines represented in course offerings.