20 minutes.
National Collegiate Hockey Conference was created in 2011.
Northeast Collegiate Hockey League was created in 2007.
Michigan Collegiate Hockey Conference was created in 1991.
Midwest Collegiate Hockey Association was created in 1998.
Southeastern Collegiate Hockey Conference was created in 2008.
Eastern Collegiate Hockey Association was created in 1991.
Central States Collegiate Hockey League was created in 1970.
Great Lakes Collegiate Hockey League was created in 2010.
Eastern States Collegiate Hockey League was created in 2007.
Tri-State Collegiate Hockey League was created in 2010.
National Collegiate women's ice hockey championship was created in 2000.
3 20 minute periods