GRTA

AcronymDefinition
GRTAGeorgia Regional Transportation Authority
GRTAGruppo Ricerca Tecnologie Appropriate (Italian: Appropriate Technology Research Group; Cesena, Italy)
GRTAGas Rapid Thermal Anneal (heating method)
GRTAGeneral Refinery Turn Around (oil & gas industry)
GRTAGreenwich Riding and Trails Association (Greenwich, CT)
GRTAGrand Rapids Transit Authority