263—8.2 (368) Initiation of petition. A petition for involuntary city development action may be initiated, pursuant to Iowa Code sections 368.11 and 368.13, by a city council, a county board of supervisors, a regional planning authority, 5 percent of the qualified electors of a city or territory involved in the proposal, or the city development board. When a proposal for city development action is initiated by the city development board, the board may require a city to submit a petition or may formulate its own petition.