Three Minnesotans are among the 22 American hockey officials who have been chosen to work at International Ice Hockey Federation tournaments in 2012.

Thomas Sterns of Prior Lake will be a referee at the World Junior Championships from Dec. 26 to Jan. 5 in Calgary and Edmonton, Alberta.

Dana Penkivech of Apple Valley will be a linesmen in the Division III World Junior Championships from Jan. 16-22 in Dunedin, New Zealand.

And Kristine Langley of St. Louis Park will be a referee at the Division II, Group A Women's World Championships from March 25-31 in Maribor, Slovenia.