Waiver

Many of the top EMBA programs do not require a GMAT. Looking at BusinessWeek's top 15 EMBA programs: 

Schools where the GMAT is NOT required: 
1. Northwestern (Kellogg) 
2. Chicago (Booth) 
6. IESE 
7. Michigan (Ross) 
9. SMU (Cox) 

Schools that offer GMAT Waiver: 
5. USC (Marshall) 
12. Emory (Goizueta) 
14. NYU (Stern) 
15. OSU (Fisher) 

(Wharton, Columbia, UCLA, Duke, UNC and IESE are the schools in the top 15 that do require GMAT)