Modifies provisions relating to the Kansas City area transportation authority

HB 858 modifies how commissioners are appointed to the Kansas City area transportation authority board. It specifies that commissioners must be appointed from five distinct districts: Cass, Platte, and Clay counties; Jackson County outside Kansas City; Kansas City itself; and establishes specific appointment procedures for each district (e.g., county commissions submit panels for Platte/Clay, governor appoints from Cass panels, city officials appoint for Jackson County and KC). The bill also limits commissioners to two consecutive four-year terms, with exceptions for unexpired terms longer than 2.5 years. This directly affects county commissions, city mayors, and the transportation authority's governance structure.