Americans For Responsible Recreational Access: http://www.arra-access.com/arra/home.html

Ark Valley Trials Association (AVTA): http://www.avtatrials.com

Midwest Trials Association (MWTA): http://mwta-trials.com/

North Eastern Oklahoma Trials Team (NEOTT): http://www.neott.com

North Texas Trials Association (NTTA): http://www.ntxtrials.com

Texhoma Trials Club (TXTC): http://www.texhomatrialsclub.com

GasGas USA: http://www.gasgas.com

North American Trials Council: http://www.natctrials.org/

Trials Competition Magazine: http://www.trialscomp.com/