1. (a) Availability. At any time after an application is filed, and subject to the provisions of §22.141 of this title (relating to Forms and Scope of Discovery), any party may serve upon any other party written requests for information and requests for admission of fact.

2. (b) Making requests for information.

   1. (1) Contents. A request under this section must identify with reasonable particularity the information, documents or material sought. A request seeking inspection of documents or property must describe with reasonable particularity the documents to be produced or the property to which access is requested, and must set forth the items to be inspected by individual item or by category.
   2. (2) Service. A copy of each request for information must be served upon all parties to the proceeding in accordance with §22.74 of this title, relating to Service of Pleadings and Documents. Requests for information that are received after 5:00 p.m. Central Prevailing Time are deemed to have been received the following working day. Responses to requests for information must be served on the requesting party and any party that has requested, in writing, to be served.

3. (c) Responding to requests for information.

   1. (1) Time for response. The party upon whom a request is served must serve a full written response to the request within 20 days after receipt of the request. The presiding officer, on motion and for good cause shown, may extend or shorten the time for providing responses.

   2. (2) Requirements of response.

      1. (A) Each response to discovery under this subsection must identify the preparer or person under whose direct supervision the response was prepared, and the sponsoring witness, if any.
      2. (B) Each request for information must be answered separately. Responses to requests for information must be preceded by the request to which the answer pertains.
      3. (C) Responses to requests for production of documents, property, or other items, must state, for each item or category of items for which an objection has not been raised, that inspection or other requested action will be permitted at a mutually convenient time at the location where the documents, property, or other items are maintained. If compliance with the request is impossible, a written response must be filed stating the reasons for the unavailability of the information.
      4. (D) Where the response to a request for information may be derived or ascertained from local public records, the responding party is not be obligated to produce the documents for the requesting party. It is a sufficient answer to identify with particularity the public records that contain the requested information.
      5. (E) Where a request may be answered by production of or reference to information that currently exists in the form of a document, computer record, or other existing tangible thing, it is a sufficient answer to the request to specify the records from which the answer may be derived or ascertained and to afford a reasonable opportunity to the requesting party to examine, to audit or to inspect such records and to allow the requesting party to make copies, compilations, abstracts or summaries from such records. The specification of records provided must be consistent with the method specified under subsection (h) of this section and include sufficient detail to permit the requesting party to locate and to identify the records from which the answers may be ascertained.
      6. (F) Responses to requests for information must be filed under oath, unless the responding party stipulates in writing that responses to requests for information can be treated by all parties as if the answers were filed under oath.

4. (d) Objections to requests for information. Parties must negotiate diligently and in good faith concerning any discovery dispute prior to filing an objection. The objections must include a statement that negotiations were conducted diligently and in good faith. If negotiation fails, objections to requests for information, if any, must be filed within ten days of receipt of the request for information. The objections must state the date the request for information was received.

   1. (1) The objections must be a separate pleading and entitled "Objections of (name of objecting party) to (style of RFI objected to)." The request for information to which an objection is being filed must be stated and the specific grounds for the objection must be separately listed for each question. If an objection pertains only to a part of a question, that part must be clearly identified. All arguments upon which the objecting party relies must be presented in full in the objection.
   2. (2) If the objection is founded upon a claim of privilege or exemption under the Texas Rules of Civil Procedure or Texas Rules of Evidence, the objecting party must file within two working days of the filing of the objections, an index that lists, for each document: the date and title of the document; the preparer or custodian of the information; to whom the document was sent and from whom it was received; and the privilege or exemption that is claimed. A full and complete explanation of the claimed privilege or exemption must be provided. The index must be sufficiently detailed to enable the presiding officer to identify the documents from the list provided. The index and explanations must be public documents and must be served on all parties who are entitled to receive copies of responses to requests for information under subsection (b)(2) of this section. If a document is to be provided pursuant to the terms of a protective order, the responding party need not comply with the procedures of this paragraph.
   3. (3) A party raising objections on the grounds of relevance as well as grounds of privilege or exemption is not required to file an index to the privileged or exempt documents at the time the objections are filed. A party may instead include an objection to the filing of the index. The objections must show good cause for postponement of the filing of the index. An index to the privileged or exempt documents is due within five working days of receipt of an order denying the relevance objection or overruling the objection to the filing of an index.
   4. (4) The requirement to respond to those requests, or portions thereof, to which objection is made will postponed until the objections are ruled upon and for such additional time thereafter as the presiding officer may direct.
   5. (5) In the interests of narrowing discovery disputes, the responding party may agree to provide certain information sought by a request while objecting to the provision of other information sought by the request.
5. (e) Motions to compel. The party seeking discovery must file a motion to compel no later than five working days after an objection is filed. If an incomplete response is filed, the party seeking discovery must file a motion to compel no later than five working days after the incomplete response was filed. If, despite the requirement to provide a response, no response is filed, the party seeking discovery must file a motion to compel no later than five working days after the response was due. Absence of a motion to compel will be construed as an indication that the parties have resolved their dispute. The presiding officer may rule on the motion to compel based on written pleadings without allowing additional argument.
6. (f) Responses to motions to compel. Responses to a motion to compel must be filed within five working days after receipt of the motion and must include all factual and legal arguments the respondent wants to present regarding the motion.
7. (g) In camera inspection. If an objection is founded on a claim of privilege or an exemption under the Texas Rules of Civil Procedure or Texas Rules of Evidence, the burden is on the objecting party to request an in camera inspection and to provide the documents for review. Any request must be filed within three working days of the receipt of the motion to compel. The request must contain the factual and legal bases to support the claimed exemption or privilege. The objecting party must review the documents and note with specificity any portions to which the claimed privilege or exemption claim does not apply. The objecting party must provide the documents to the presiding officer, under seal, no later than one working day after it requests an in camera inspection. Documents submitted for in camera review must not be filed with Central Records. Documents submitted for in camera review must be submitted to the presiding officer and enclosed in a sealed and labeled container accompanied by an explanatory cover letter. The cover letter must identify the control number and style of the proceeding and explain the nature of the sealed materials. The container must identify the control number, style of the case, name of the submitting party, and be marked "IN CAMERA REVIEW" in bold print at least one inch in size. Each page for which a privilege is asserted must be marked "privileged."

8. (h) Production of material responsive to requests for information. The following procedures apply to the production of materials responsive to requests for information unless otherwise specified by the presiding officer:

   1. (1) A party responding to a request for information must make available all material responsive to the request to each party to that proceeding. A party responding to a request for information makes such material available by:

      1. (A) serving a copy of all such responsive material to the other parties to the proceeding in the manner specified by §22.74 of this title; and
      2. (B) with the exception of voluminous material as provided by paragraph (4) of this subsection, filing all such responsive material with the commission in the manner required by §22.71 of this title (relating to Commission Filing Requirements and Procedures) and, as applicable, §22.72 of this title (relating to Form Requirements for Documents Filed with the Commission).
   2. (2) In addition to the required methods of production specified under subparagraphs (1)(A) and (1)(B) of this section, a party responding to a request for information may also make available materials responsive to such a request in a form and manner agreed to by the parties.

   3. (3) Material responsive to a request for discovery must, at a minimum, be:

      1. (A) consecutively categorized or classified (e.g., "Attachment A");
      2. (B) labelled or cross-referenced by request for information number and subpart (e.g., "Responsive to RFI 1-1"); and
      3. (C) sequentially ordered by page or bates number.

   4. (4) A party providing materials that individually are 100 pages or greater must include with its response a detailed index of the material responsive to a particular question and must organize the responses and material to enable parties to efficiently review the material. The index must include:

      1. (A) information sufficient to locate each individual document by page or file number;
      2. (B) the title of the document, or, if none exists, a description of the document;
      3. (C) the name of the sponsoring witness; and
      4. (D) the length of each document.
   5. (5) If a party responding to a request for information does not provide an index required under paragraph (4) of this subsection, the party filing the request for information may file a motion to compel the responding party to produce such an index.
9. (i) Duty to supplement. A responding party is under a continuing duty to supplement its discovery responses if that party acquires information upon the basis of which the party knows or should know that the response was incorrect or incomplete when made, or though correct or complete when made, is materially incorrect or incomplete. The responding party must amend its prior response within five working days of acquiring the information.
10. (j) Requests for admission of facts. Requests for admission of facts must be made in accordance with the Texas Rules of Civil Procedure.
11. (k) Modifications of deadlines. Modification of the deadlines for responses, objections, and motions to compel may be modified by agreement of the affected parties, by filing a letter or other document evidencing the agreement.

Source Note:The provisions of this §22.144 adopted to be effective November 1, 1993, 18 TexReg 6641; amended to be effective September 8, 1995, 20 TexReg 6627; amended to be effective December 17, 2000, 25 TexReg 12381; amended to be effective March 18, 2026, 51 TexReg 1630.