There are many BBQ competitions, so I listed the sanctioning bodies I know:
To add yours, send an email to aaron@thesmokerking.com
California Barbecue Association
Central Texas Barbecue Association
Florida Barbecue AssociationIllinois BBQ Alliance
International Barbeque Cookers Association
North Carolina Barbecue Society
Pacific Northwest BBQ Association
South Carolina Barbeque Association
Texas Gulf Coast BBQ Cooker's Association.
Send an email to aaron@thesmokerking.com to add your sanctioning body.