701—7.3 (17A) Business hours. The principal office of the department in the Hoover State Office Building in Des Moines, Iowa, shall be open between the hours of 8 a.m.	to 4:30 p.m.	each weekday except Saturdays, Sundays and legal holidays as prescribed in Iowa Code section 4.1(34), for the purpose of receiving protests, pleadings, petitions, motions, requests for public information, copies of official documents, or for the opportunity to inspect public records.
All documents or papers required to be filed with the department by these rules shall be filed with the administrative law judge in the principal office of the department in the Hoover State Office Building, Des Moines, Iowa 50319. Requests for public information or copies of official documents or the opportunity to inspect public records shall be made in the director’s office at the department’s principal office.