The blue box recycling system (BBRS) was initially a waste management system used by Canadian municipalities to collect source separated household waste materials for the purpose of recycling. The first full-scale community wide BBRS was implemented in 1983 by the waste management contractor Ontario Total Recycling Systems Ltd. (a subsidiary of Laidlaw Waste Systems) for the City of Kitchener, Ontario. The blue box recycling system was implemented as part of the city's waste management procedures. The blue box system and variations of it remain in place in hundreds of cities around the world.