Regional Champions can refer to any of a great many singers, depending on context. "Region" implies Sweet Adelines International and its contests.
Regional Quartet Champions
In SAI, the Regional Quartet Competition also serves as the International Qualifier. If the Champions decline, 2nd place may compete instead.
If 2nd place earns a wildcard slot or declines, this "automatic" invitation does not trickle down to quartets placing 3rd or lower.
SAI Regional Chorus Champions
At contest time, all singers must be members in good standing of both SAI and the Region, as must the chapter itself.
- SAI website: competition rules and forms