The Durham District School Board (DDSB, known as English-language Public District School Board No. 15 prior to 1999) is a public school board in the province of Ontario, Canada. The board serves most of the Regional Municipality of Durham, except for schools within the Municipality of Clarington, which instead belong to the Kawartha Pine Ridge District School Board. The Durham District School Board Education Centre head office is based in Whitby. The school board has families of schools Pickering, Ajax, Whitby, Oshawa, and Brock-Uxbridge-Scugog, each of which has two trustees except Oshawa, which has three. Three student trustees, using a non-binding, recorded vote, represent the region of Durham. In total the school board has more than 7000 staff who serve approximately 46,000 elementary and 24,000 secondary school students. Previously known as the Ontario County Board of Education, the board was known as the Durham Region Board of Education when it came into existence in 1974. The DRBE was renamed to the Durham District School Board in 1998 and francophone schools that were managed by this board are now part of Conseil scolaire Viamonde. A unique program to the Durham District School Board that is running in a number of its secondary schools is called the Culture of Peace Committee, which works on a wide variety of social and humanitarian issues within the schools and in the community. The Durham District School Board operates a gifted program in select schools. This program for students in grades 4–12 entails material being taught at an accelerated rate. Acceptance into the program is based on ranking in the top 1% of a test in mathematics, logic and literacy during grade 3. Secondary schools Ajax High School Anderson Collegiate Vocational Institute Brock High School Brooklin High School (opened September 2015) Cartwright High School (closed June 2013) Donald A Wilson Secondary School Dunbarton High School Durham Alternative Secondary School Eastdale Collegiate and Vocational Institute G L Roberts Collegiate and Vocational Institute Henry Street High School J. Clarke Richardson Collegiate - named for local educator Maxwell Heights Secondary School - named after a previous school, Maxwell Heights Public School O'Neill Collegiate and Vocational Institute - named for long-time principal, Albert O'Neill Oshawa Central Collegiate Institute (closed June 2016) Pickering High School Pine Ridge Secondary School Port Perry High School R S McLaughlin Collegiate and Vocational Institute - named for Canadian auto pioneer Sinclair Secondary School Uxbridge Secondary