Title IV governs the regular periodic elections of officers in labor organizations subject to the Act. No requirements are imposed with respect to the filling by election or other method of any particular office which may become vacant between such regular elections. If, for example, a vacancy in office occurs in a local labor organization, it may be filled by appointment, by automatic succession, or by a special election which need not conform to the provisions of title IV. The provisions of section 504 of the Act, which prohibit certain persons from holding office, are applicable to such situations. While the enforcement procedures of section 402 are not available to a member in connection with the filling of an interim vacancy, remedies may be available to an aggrieved member under section 102 of the Act or under any pertinent State or local law.