Have control over the horse at each pace.
Be working on establishing rhythm, suppleness/ relaxation, contact, impulsion and straightness. Collection is not necissary at this stage.
Have the horse bend and flex.
At this level the test will require you to work on the outside track, execute 20m circles and half , work across the long diagonals and perhapse short, and maybe 3 loop serpentines.
The horse should be moving freely forward, accepting the contact and show basic obedience to aids allowing you to make transitions between gaits and large figures. From some rule book: "The purpose of the Training Level Dressage Tests is to confirm that the horse's muscles are supple and loose, and that it moves freely forward in a clear and steady rhythm, accepting contact with the bit."
If you are serious, get the book "Lessons with Lendon". She has 25 lessons for you to walk through before you are ready for your first training-level show. She also walks you through your first show as well. Excellent book.
Thanks Cat- Glad I opened this thread. My mare has been at the trainers for the last two weeks and she is so impressed with her that she wants me to ride her in a schooling show in Dallas on the 14th of Feb. I'm a bit freaked out, but maybe this book will help me!!!