(a) Unification.--A city may:
(1) unite with:
(i) one or more cities;
(ii) cities of two or more classes; and
(iii) one or more municipalities;
(2) form and organize a league of cities and municipalities; and
(3) hold annual conventions for the study and consideration of municipal affairs of concern that pertain to the cities and municipalities comprising the league.
(b) Delegates.--A city that is a member of the league may do the following:
(1) Send delegates to the league.
(2) Pay the necessary expenses, including:
(i) Incidental expenses to attend the annual convention.
(ii) Dues to the league.
(iii) Appropriate money to join and participate in any of the various business and training programs of the league designed to address municipal needs in a cost-efficient manner.
(3) Provide a fund for the necessary costs and expenses of the league and league conventions.
(c) Accounting.--Each delegate shall submit to the city controller for approval an itemized account of the delegate's expenses to be paid under the authority of this section.
(d) Appropriation.--Council is authorized to appropriate money for support of and participation in other organizations at the national and State level concerned with municipal affairs.