Little League International's age rules remain the same as last year. For most players, the age determination date is how old your child is on August 31st. For players born in 2004 and 2005, the age determination date is how old your child is on April 30th (these older kids continue to play based on Little League's former age rules).
The age chart for this coming ball season is shown below. The red outline shows a player born in July 2007 as an example.