The prescribed maximum period of three, four, or five years is measured from the date of the last election. 20 It would not be consistent with these provisions of the Act for officers elected for the maximum terms allowable under the statute to remain in office after the expiration of their terms without a new election. Failure to hold an election for any office after the statutory period has expired constitutes a continuing violation of the Act, which may be brought to the attention of the Secretary in the form of a complaint filed in accordance with the appropriate procedure. Title IV establishes only maximum time intervals between elections for officers. Labor organizations covered by these provisions may hold elections of officers with greater frequency than the specified maximum period. For example, a local labor organization is required to hold an election of officers at least once every three years, but it must hold an election every year if its governing rules so provide. It should be noted, moreover, that the provisions of title IV apply to all regular elections of officers in labor organizations subject to the Act. Thus, if a labor organization chooses to hold elections of officers more frequently than the statutory maximum intervals, it must observe the minimum standards set forth in title IV for the conduct of such elections.