Table Tennis Canada encourages the use of the new plastic ball immediately in all training and competition. All ***star and higher competitions must use the new plastic ball as of September 1.
As of January 1, 2015, all sanctioned events, events that submit their results to the Canadian Ranking System, must use the new plastic balls.
Nittaku 3star Premium is the official ball of Table Tennis Canada.
Other brands, such as Double Fish (avec couture) and Xu Shaofa (sans couture) are available through retailers.
ITTF on the new plastic ball: http://ittf.com/Press_releases/PR/PR1.asp?id=10
ITTF approved table tennis balls: http://www.ittf.com/_front_page/ittf1.asp?category=balls