Literary Braille Certification

It Lesson 20 it now states that a person can have up to 3 attempts to pass the certification before having to wait one year to take the course over and submit a fourth and final submission.  If a person makes below 60 on their first attempt, do they submit another completely different manuscript?  This is what the manual states:

20.12  If the score on the first manuscript is between 75 and 79, the student will be asked to submit a second manuscript of twenty-five pages. If a successful score has still not been reached after a third try, the student is directed to wait twelve months and retake the transcribing course before submitting a final fourth manuscript. 

Can you please clarify this.  Thanks!