From Bulbapedia, the community-driven Pokémon encyclopedia.
The 2014-15 Expanded format of the Pokémon Trading Card Game is one of two formats (Standard and Expanded starting with the 2014-15 season) used for Play! Pokémon organized play and in most sanctioned tournaments worldwide. Expanded format was first introduced in this 2014-15 season. It is also used in the Pokémon Trading Card Game Online.
The 2014-15 Expanded format was announced on July 22, 2014, and starts with the Black & White expansions onward.
- North America and Europe: September 3, 2014 to September 1, 2015