Entries begin on January 23rd and you can enter until February 5th unless they reach 5000 entries by that date. They will accept up to 5000 entries in two separate categories, general fiction and young adult fiction.
See the official rules at http://www.amazon.com/abna, but basically it’s a contest for novels between 50,000 and 150,000 words that have not been previously published. Self-published is OK if you have all the rights.
Submit your entry at http://www.CreateSpace.com/abna.