(a) A home rule charter may be amended as provided in the charter, except that no amendment is effective unless ratified by the voters.
(b) If a charter is amended, the municipality shall file the indicated number of copies of the revised charter with (1) the lieutenant governor — two copies;
(2) the department — two copies;
(3) the district recorder — one copy;
(4) the municipal clerk — one copy.
(c) This section applies to home rule municipalities.