From the introduction:
All of the races presented in this document are open for D&D Adventurers League play. That’s right, aasimar, orcs, kenku, yuan-ti... all of it. That said, we have some idea about how these new character races fit into our world, and so herein resides a racial story that must be incorporated into the background of your various characters. If this document references a location for your race, that is where you’re from. If it references a specific tribe, that is where you’re from. If it references an outlook, then that is part of your outlook. I think you get the idea.
Adapts the new player races from Volo's Guide to Monsters for legal play in D&D Adventurers League games.