WSA
Western Snowmobile Association
1968 -

WSRA
Western Snowmobile Racing Association
19?? -

OSSRA
Oregon State Snowmobile Racing Association
1973 - 1980

USSA
United States Snowmobile Association
West / Alaska

WSSRA
Washington State Snowmobile Racing Association
!9??-

NSRA
Northwest Snowmobile
Racing Association
19?? -

BCSRA
B C Snowmobile
Racing Association
19?? -

ISRF
International Federation
Of Snowmobile
Associations

NWSA
Northwest Snowmobile Association
19?? -

CSRC
Colorado Snowmobile
Racing Club
19?? -

MSRA
Montana State
Racing Association
19?? - Current

USSRA
Utah State Snowmobile
Racing Association
19?? - !9??

WSRF
World Snowmobile
Racing Federation
1977 - 1980

RMSHA
Rocky Mountain Snowmobile Hillclimb Association
19?? - Current

ISR
International Snowmobile
Racing
19?? - Current

RMXCRC
Rocky Mountain
Cross Country
Race Circuit
19?? - 20??

OSRC
Oregon Snowmobile Racing Circuit
1987-2000

CCC
Colorado Cross Country
19?? -

WSRI
Western Snowmobile
Racing Incorporated
20?? -

MWR
Mountain West Racing
20?? _

COSRA
Cal / OR Snowmobile
Racing Association
1999 - 2003

OVSRC
Oregon Vintage Snowmobile Racing Circuit
2021 - Current

XMR
X-treme Mountain Racing
20?? - Current

VSRPL
Vintage Snowmobile Racing Priest Lake
2015 - Current