The Ottawa Student Transportation Authority (OSTA) is responsible for all home-to-school transportation on behalf of the Ottawa-Carleton District School Board (OCDSB) and the Ottawa Catholic School Board (OCSB). OSTA delivers safe and efficient transportation services to over 124,000 students at both its Member School Boards using yellow buses, wheelchair buses, school purpose vans and School Active Transportation programs. Our Service area covers 2,670 sq. km and includes 227 schools.