B-1.1, r. 2 - Construction Code

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8.156. A hose on a motor fuel dispenser must be no longer than
(1)  5 m; it may however be 6 m long if it has a retracting mechanism;
(2)  6 m for an unattended self-serve facility; it may however be 7.5 m long if it has a retracting or coiling mechanism; or
(3)  7.5 m for an airport outlet, a user outlet or a marina outlet if it has a retracting mechanism; that requirement does not apply to a hose with a coiling mechanism.
O.C. 220-2007, s. 1.