TRRA

AcronymDefinition
TRRATerminal Railroad Association (of St. Louis)
TRRAThree Rivers Rowing Association (Pittsburgh, Pennsylvania)
TRRAToronto Region Research Alliance (Canada)
TRRAThe Ranger Regiment Association
TRRATaxpayer Refund and Relief Act of 1999 (US)
TRRATexas River Recreation Association
TRRAThree River Rowing Association (Pittsburgh, Pennsylvania)
TRRATax Relief Reconciliation Act of 2003 (US)
TRRATilt Rotor Research Aircraft
TRRAtraining resource requirements analysis
TRRAtumor/tissue-restricted replicative adenovirus