Representation of parties and interveners; qualifications of representatives.

1. Any party to or intervener in a hearing before the Board may appear in person or through a representative. 2. A representative of a party or intervener controls all matters respecting the interest of the party or intervener in the proceeding. 3. Affected employees who are represented by an authorized employee representative may appear only through the authorized employee representative. 4. A representative of a party, an intervener or a representative of employees is not required to be an attorney at law. 5. Unless 1 year has elapsed since the termination of his or her employment, a former employee of the Division, the Enforcement Section or the Chief may not appear before the Board as an attorney or other representative for any party in any proceeding or other matter, formal or informal, for which he or she was personally responsible during the period of his or her employment.