FORT COLLINS, Colo. -- Fraternities at Colorado State University will look a lot different beginning Monday.

After the alcohol-poisoning death of a 19-year-old Samantha Spady, CSU's Greek organizations decided a month ago to become alcohol-free and substance abuse-free.

The school has 23 fraternities and 15 sororities, but only 12 fraternities and eight sororities have their own houses. All eight of those sororities already are alcohol-free. The new rules primarily effect only five fraternity houses that had allowed alcohol.

Delta Tau Delta president Chuck Cecil said it's a good transition and will be the best thing for the Greek system in the long run.

But CSU Intrafraternity president Patrick Hutchinson said officials expect widespread acceptance of the new rules to be a difficult thing to win. Sigma Chi fraternity member Joe Marshall said it likely will be several years before the goal is fully realized.