conference paper Used oil policies to protect the environment: An overview of Canadian experiences Traffic and transportation studies (2002) Publication Date July 1, 2002 Author(s) Hilary Nixon, Jean-Daniel Saphores View conference paper Suggested Citation Hilary Nixon and Jean-Daniel Saphores (2002) “Used oil policies to protect the environment: An overview of Canadian experiences”, in Traffic and transportation studies (2002). American Society of Civil Engineers. Available at: 10.1061/40630(255)11.