I would think that all GLO's would have to have banned hazing by now, considering something like 42 states have laws against it. I know Lambda Chi Alpha was one of the first if not THE first to condemn hazing, way back in the day, 1928. LCA also got rid of the term pledge in 1972. It's more symbolic than anything, but shows that we were trying to make a difference. If you want any more info feel free to email me: mailto:steve.corbin@rose-hulman.edu
Here's the LCA timeline if you want to check it out:
http://www.lambdachi.org/timeline___1909-1929.htm
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Steve Corbin
Lambda Chi Alpha
Theta Kappa Chapter
Rose-Hulman Inst. of Tech.