http://www.minnesotahockey.org/news_article/show/130575?referrer_id=80568

 Effective Wednesday, January 25, 2012, the penalty for boarding and checking-from-behind will be a minimum five (5) minute major penalty. This will cover all Minnesota Hockey sanctioned games played until July 31^st, 2012; after this time, the changes will be reviewed by the Minnesota Hockey Board of Directors