(a) Consistent with the limitations and procedures set forth in this Part, parties shall fully disclose to each other, upon request, all information (including data, records, objects, and documents) relevant and material to a proceeding in which they are participating and any information likely to lead to such information. The provisions of this Part apply to formal proceedings, and do not limit any other authority of the commission or its staff to obtain information from a utility company, or other entity.

(b) To the maximum extent possible, discovery requests and responses pursuant to this Part shall be served electronically.