(a) Generally. When authorized by the ALJ, a party may conduct discovery by serving a written request on any other party to:

(1) Produce, or permit the requesting party to arrange for the inspection and copying of, any specified documents or electronically stored information in the responding party's possession, custody, or control;

(2) Permit the requesting party, or someone acting on the requesting party's behalf, to inspect, copy, test, or sample any tangible things in the responding party's possession, custody, or control; or

(3) Permit the requesting party, or someone acting on the requesting party's behalf, to enter onto designated land or property in the possession or control of the responding party for the purpose of inspecting, measuring, surveying, photographing, examining, testing, or sampling.

(b) Content of request. As applicable, each request must set forth with particularity:

(1) The item or category of items to be produced, copied, or inspected;

(2) A reasonable time, place, and manner for any inspection and related acts; and

(3) The form in which electronically stored information is to be produced.

(c) Responses and objections. Unless a longer or shorter time period is agreed to by the parties or ordered by the ALJ, responses and objections must be served within 28 days of receipt of the request. The response must state, with respect to each item, whether the production or inspection will be permitted as requested or whether there are any objections. If the responding party makes any objections, the reasons must be stated with specificity. Responses and objections must be signed in accordance with § 4.112(e). Responses must be signed by the person providing the response, and objections must be signed by the party's representative or the party, if unrepresented.