Opérateur de transport de Wallonie

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. It is primarily a bus operator, but also operates the Charleroi light rail system and the light rail line in Liège.

TEC sells the MOBIB smartcard branded "TEC it easy" and runs a chain of shops called Espace TEC. Most of TEC buses and trams in Charleroi are distinctively painted yellow and red.