We Have Been Here Before: Supply Management in Transportation is a precursor to the Centre for Food in Canada’s comprehensive new report exploring reform options for Canada’s supply-managed agricultural commodities. We Have Been Here Before explores “supply management” in industries other than agri-food—specifically the trucking and taxicab industries. One of those industries has experienced considerable deregulation, while the other continues to have significant entry and price controls. The briefing isolates case studies on supply management in transportation that help to place the broader discussion on supply management reforms into context.