Opérateur de transport de Wallonie (French pronunciation: [ɔpeʁatœʁ də tʁɑ̃spɔʁ də walɔni], Transport Operator of Wallonia, OTW), formerly Société régionale wallonne du transport ([sɔsjete ʁeʒjɔnal walɔn dy tʁɑ̃spɔʁ], Walloon Regional Transport Company, SRWT), is responsible for the supervision, strategic planning and marketing of a group of five regional public transport directorate branded as TEC or "Transport En Commun" (French for: Public Transport) in Wallonia, Belgium.[1] TEC buses and trams are distinctively painted yellow and red.TEC was founded in 1991 through the breakup of the former Belgian NMVB/SNCV into separate companies for Wallonia and Flanders.TEC sells the MOBIB smartcard branded "TEC it easy" and runs a chain of shops called Espace TEC.In 2019, Société régionale wallonne du Transport (SRWT) became Opérateur de transport de Wallonie (OTW).