Indiana Code Title 22. Labor and Safety § 22-4-17-3.2

(1) An attorney in good standing admitted to the practice of law in Indiana.

(2) An attorney in good standing admitted to the practice of law in another state who has been granted temporary admission to the state bar under Rule 3 of the Rules for Admission to the Bar and the Discipline of Attorneys adopted by the supreme court.

(1) an officer or other employee of the employer or employing unit as designated by the employer or the employing unit;

(2) an attorney;

(3) an accountant certified by and in good standing with the state;  or

(4) a representative of an unemployment compensation service firm.

(1) the claimant in person;

(2) an attorney;

(3) an accountant certified by and in good standing with the state;  or

(4) an authorized agent of a bona fide labor organization to which the claimant belonged at the time the pending claim occurred.