All-Age Drum Corps
All-age Corps accepts that members of any age, unlike junior corps. But each corps will have it rule regarding those of minor age (18 and younger).
Today most of the senior corps are members of DCA and compete in the Open Class, A Class, Mini-corps or Alumni circuits.
- Open Class
- Class A
- Class A-35
- Affiliated (active, but not attending DCA)
- Unaffiliated (active and independent]]
- Alumni Drum Corps
Over the years many senior corps belonged to other competative associations such as The Red Carpet Association RCA, Canadian Drum Corps Association CDCA , Ontario Drum Corps Association ODCA , New York-Canadian Association.