Here is the press release on the league going to 3-on-3 overtime and incorporating a coach’s challenge for next season:
LAS VEGAS (June 24, 2015) – The National Hockey League Board of
Governors today approved rules changes for the 2015-16 season that will
change the overtime format to 3-on-3 for five minutes, expand the use of
video review to include a Coach’s Challenge within a limited scope of
scenarios and amend face-off protocol.
The Board acted on the series of recommendations it received from the
NHL/NHLPA Competition Committee and the NHL General Managers.
3-on-3 Overtime
1. Teams play an additional overtime period of not more than five
(5) minutes with the team scoring first declared the winner and being
awarded an additional point.