The Tax Court shall appoint a clerk. The clerk is entitled to the salary provided in the State budget. The clerk shall have custody of and keep as a public record: a docket that is a full and accurate record of all proceedings in the Tax Court; and a file of all the pleadings and exhibits in all proceedings in the Tax Court. The clerk shall issue a subpoena as required under §§ 13-520 and 13-521 of this article. The clerk shall perform other duties that the Tax Court assigns. The clerk may administer oaths in connection with any proceeding in the Tax Court.