Can someone list me step by step procedure involved in taking up the exam for first time. I live in Texas. I am confused with the steps listed in TREC website

Accomplished so far as
1) Enrolled in TREC. ( I have the TREC id)
2) Completed all the mandatory hours of 30 hours for each of the 6 subject areas

I am NOT sure what is the subsequent steps involved.

Appreciate your help!!!