Unless otherwise specifically provided, no franchise shall be granted for a longer period than twenty years.

Source: SL 1890, ch 37, art V, § 1, subdiv 24; RPolC 1903, § 1229, subdiv 24; SL 1903, ch 221; SL 1907, ch 92, § 1; SL 1913, ch 119, § 53, subdiv 24; SL 1913, ch 119, § 123; RC 1919, § 6248; SL 1921, ch 310; SDC 1939, § 45.1006.