On written call of the Secretary of State, the county elections officials, city elections officials, and registrars of voters of this state may meet with the approval of their legislative bodies, at the time and place within this state designated in the call, to discuss matters affecting the administration of the election laws and to promote uniformity of procedure in those matters. Meetings shall not exceed three in any calendar year. Any deputy of a county elections official, city elections official, or registrar of voters, designated for the purpose by his or her principal, may attend these meetings, alone or with his or her principal. The actual and necessary expenses of the county elections official, city elections official, or registrar of voters, and of a deputy, incurred in traveling to and from meetings and in attending the same, for each officer for any one meeting, shall be a charge of the county or city of the elections official or registrar, and payable as other county or city charges.