Dry Fraternity Rush policies at the Inter/national level

[Betarulz!]

Was just wondering if all Inter/national fraternities had some sort of regulation/by-law against the use of alcohol with potential new members/guys that have yet to officially accept a bid? I did a search and found nothing.

I am NOT interested in hearing stories about whether or not the rules are followed, just if they exist. Also, I'm mainly interested in the following organizations and their rules.

ATO
Fiji
Lambda Chi
Phi Delt
Theta Xi
Phi Psi
Delt
SigEp
Sigma Nu
SAE
DU
Sigma Chi
Farmhouse
Acacia
Triangle
AGR
AGS
Pike