The Bank of Canada introduced polymer banknotes in late 2011, with the primary objective of enhancing the security of Canada’s banknotes. An additional benefit of polymer is the expectation of longer circulation lifespans, offsetting the higher cost of production. Since the issuance of the last two series of banknotes, tens of millions of fitness records on banknotes have been gathered, and the bank is now in a position to evaluate the lifespan of polymer banknotes in comparison to previous