The NHL announced on Wednesday that Stephen Walkom is rejoining the league as NHL Senior Vice President and Director of Officiating, replacing the retiring Terry Gregson.
Walkom held the same position between 2005 and 2009.
"We are fortunate to have someone with Stephen's on- and off-ice experience ready to step in to this position," said NHL Senior Executive Vice President and Director of Hockey Operations Colin Campbell in a statement.
"From 2005 to 2009, Stephen provided tremendous direction and guidance to our team of officials as the League implemented several rule changes that brought more flow and speed to our game. That management experience, combined with the fact that he has been back on the ice as a referee for the last four years, will be of tremendous benefit to the League and the game."
Walkom, 49, refereed a total of 965 regular season and 139 Stanley Cup playoff games. He also worked the 2002 Olympic Winter Games and 2004 World Cup of Hockey as well as the 2002, 2004, 2010 and 2011 Stanley Cup Finals.
Walkom served on the Executive Board of the NHL Officials' Association from 1993 to 2005, including a term as President before joining the League's front office in 2005.
Gregson, who joined the league's front office in 2005 after a 25-year career as a referee, will serve as a consultant to the NHL on officiating matters, including the league's participation in the 2014 Olympic Winter Games in Sochi.
Gregson worked 1,427 regular-season games and 158 playoff games, including appearances in eight Stanley Cup Final series. He also served as an executive with the NHL Officials' Association from 1982 to 2000.
"Terry had the unique ability to expertly manage the 78-man NHL officiating team," said Campbell in a statement. "His tireless efforts behind the scenes to ensure that NHL officiating was the best it could be on a nightly basis were seldom recognized publicly, but we greatly appreciate his dedication to the game both on and off the ice for the past 33 years. We are also pleased that he has agreed to continue to work with the Officiating Department on various projects."