Regulations last checked for updates: Aug 02, 2025

Title 43 - Public Lands: Interior last revised: Jul 22, 2025
§ 4.20 - Purpose and scope.

(a) Purpose. The purpose of this subpart is to establish general rules of practice, where appropriate.

(b) Scope. General rules applicable to proceedings before OHA are set forth in subparts A and B of this part. Rules applicable to particular units or a particular type of proceeding are set forth in other subparts of this part. Wherever there is any conflict between one of the general rules in subparts A or B of this part and a rule in another subpart of this part, the specific rule will govern. Other laws, regulations, and policies of the Department may also address and be applicable to a particular type of proceeding. In addition, part 1 of this subtitle, which regulates practice before the Department of the Interior, applies to proceedings before OHA.

§ 4.21 - Exhaustion and finality.

(a) Exhaustion. An appeal must be filed with the Director or applicable Appeals Board to exhaust administrative remedies unless otherwise provided by applicable law or the decision is immediately effective.

(b) Finality—(1) Decisions not in effect. A decision that is not in effect pending completion of an appeal does not constitute final agency action for the Department.

(2) Decisions in effect. A decision that is in effect, or goes into effect, pending completion of an appeal is final agency action for the Department, subject to being superseded by a final decision of the Director or an Appeals Board.

(3) Final Department Decision. The final decision of the Director or an Appeals Board constitutes the final agency action of the Department and is effective on the date it is issued unless the decision provides otherwise.

§ 4.22 - Retention of documents; record address; and extensions of time.

(a) Retention of documents—(1) In general. All documents received in evidence in a hearing or submitted for the record in any proceeding before an OHA Unit will be retained in the official record of the proceedings.

(2) Withdrawal and substitution of original documents. The substitution of original documents may be permitted while the case is pending upon the submission of true copies. When a decision has become final for the Department, an Appeals Board in its discretion may, upon request and after notice to the other party or parties, permit the withdrawal of original documents in whole or in part. As a condition of granting permission for such withdrawal, the Appeals Board may require the substitution of true copies in its discretion and as necessary to ensure an accurate record of the proceeding.

(3) Sealed against disclosure. Transcripts of testimony and/or documents received or reviewed pursuant to § 4.31 will be sealed against disclosure to unauthorized persons and retained with the official record, subject to the withdrawal and substitution provisions.

(b) Record address information. At the time of initial filing, every person or entity who files a document in connection with any proceeding before OHA must provide their mailing address. A person or entity filing electronically must also provide the electronic mailing address that the person or entity intends to use in the proceeding.

(1) Address changes. A person or entity who has provided their address in a proceeding must promptly file and serve upon other parties to the proceeding, written notice of any change to their address information with the OHA Unit in which the matter is pending.

(2) Successors. The successors of a person or entity who has provided their address in a proceeding must promptly file notice of their own addresses.

(3) Failure to provide or update a record address. A person or entity who fails to provide or update their address information as required is not entitled to notice or service in connection with the proceeding until they have provided or updated their address information.

(c) Computation of time for filing and service. Except as otherwise provided by law, the following rules apply when computing any time period specified in a regulation, notice, order, or decision.

(1) Exclude the day of the event that triggers the time period;

(2) Count every day, including intermediate Saturdays, Sundays, and Federal holidays; and

(3) Include the last day of the period, but if the last day is a Saturday, Sunday, Federal holiday, or other nonbusiness day, the period continues to run until the end of the next day that is not a Saturday, Sunday, Federal holiday, or other nonbusiness day.

(d) Extensions of time. (1) The time for filing or serving any document may be extended by the presiding officer before whom the proceeding is pending, except for the time for filing a notice of appeal and except where such extension is contrary to law or regulation.

(2) A request for an extension of time must be filed within the time allowed for the filing or serving of the document and must be filed in the same office in which the proceeding is pending.

§ 4.23 - Hearings or related proceedings.

(a) Transcripts. Hearings may be recorded, transcribed verbatim, or both. Interested parties may request a copy of the transcripts or recording of the hearing. The requesting party is responsible for fees and expenses of preparing their copy of a transcript or recording. For transcripts prepared by a contractor with a Department of the Interior bureau or office, each party is responsible for obtaining and paying for its copy of the transcript consistent with any statutory provisions governing the proceeding.

(b) Video, teleconferencing, or other suitable technology. In circumstances that the presiding officer deems appropriate, a hearing or proceeding may be conducted, in whole or in part, using video, teleconferencing, or other suitable technology.

§ 4.24 - Basis of decision.

(a) Record. (1) The record of a hearing consists of the transcript of testimony or summary of testimony and exhibits together with all documents filed in conjunction with the hearing.

(2) If a hearing has been held on a referred issue of fact pursuant to § 4.337 or § 4.415, this record is the sole basis for decision on the referred issues of fact that are involved, except to the extent that official notice may be taken of a fact as provided in paragraph (b) of this section.

(3) Where a hearing has been held in other proceedings, the record made is the sole basis for decision except to the extent that official notice may be taken of a fact as provided in paragraph (b) of this section.

(4) In any case, no decision after a hearing or on appeal may be based upon any record, statement, file, or similar document that is not open to inspection by the parties to the hearing or appeal, except for documents or other evidence received or reviewed pursuant to § 4.31(d).

(b) Official notice. The presiding officer or an Appeals Board may take official notice of the public records of the Department of the Interior and of any matter of which the courts may take judicial notice.

§ 4.25 - Oral argument and status conferences.

The Director or the presiding officer or an Appeals Board may, in their discretion, order or grant upon a written request, an opportunity for oral argument or status conferences. An oral argument or status conference may be conducted by video, teleconferencing, or other suitable technology.

§ 4.26 - Subpoena power and witness provisions for probate proceedings.

(a) Purpose. To the extent authorized by law, subpoenas may be issued by Ph.D. ALJs or IPJs in a probate proceeding under part 30 of this subtitle, or by the presiding officer in a probate proceeding under subpart H of this part, to require the attendance of a person, the giving of testimony, or the production of documents or other relevant materials.

(b) Issuance. The ALJ, IPJ, or presiding officer may issue a subpoena on a form that contains the caption for the proceeding, specifies the name and address of the person or entity from whom the testimony or material is sought, and orders one or more of the following:

(1) If the subpoena requires the person to testify in person at a hearing or deposition, then the subpoena will order the person to appear at a specified date, time, and place;

(2) If the subpoena requires the person to testify at a hearing or deposition using video, teleconferencing, or other suitable technology, then the subpoena will order the person to appear at a specified date and time and will contain the information necessary to testify remotely; or

(3) If the subpoena requires the production of designated documents, electronically stored information, or other tangible materials by a nonparty, then the subpoena will order production by a specified date and will designate whether the production must occur in person, by mail, by third party commercial courier, or by electronic means.

(c) Service. A subpoena must be served by one of the following methods:

(1) In person. A subpoena may be served by any person who is not a party to the proceeding and is 18 years of age or older by hand-delivering a copy of the subpoena to the person or entity named in the subpoena; or

(2) By registered or certified mail. A subpoena may be served by registered or certified mail, with a return receipt requested, to the last known residential address or place of business of the person or entity named in the subpoena.

(d) Geographic limits. A witness may be required to attend a deposition or hearing at a place not more than 100 miles from the place of service, except that no geographic limits apply to attendance at a deposition or hearing that is conducted using video, teleconferencing, or other suitable technology that allows a witness to testify remotely.

(e) Witness fees. Witnesses subpoenaed by any party will be paid the same fees and mileage as are paid for like service in District Courts of the United States under 28 U.S.C. 1821. The witness fees and mileage will be paid by the party who requested the appearance. Any witness who appears without being subpoenaed is also entitled to the same fees and mileage to be paid by the party who requested the appearance. This paragraph does not apply to Government employees who are called as witnesses by the Government.

§ 4.27 - Ex parte communication and disqualification.

(a) Definition of ex parte communication. (1) An ex parte communication is any oral or written communication related to the merits of a pending proceeding or appeal before OHA that was not on the record, not furnished to all other parties, or not made in the presence of all parties, and that takes place between:

(i) Any party to the proceeding or appeal or any person or entity interested in the proceeding or appeal; and

(ii) Any OHA personnel who is involved in, or who may reasonably be expected to become involved in, the decision-making process in that proceeding or appeal.

(2) The following types of communications are not ex parte communications:

(i) Communications concerning case status, case scheduling, or the availability of Alternative Dispute Resolution;

(ii) Communications concerning compliance with procedural requirements, unless that compliance is an area of controversy in the proceeding or appeal;

(iii) Communications between Bureau of Indian Affairs (BIA) employees and Ph.D. employees about a probate case held pursuant to 43 CFR part 30, unless BIA has filed a petition for rehearing, reopening, or reconsideration in that case;

(iv) Communications between Interior Business Center (IBC) employees and OHA employees about an employee debt waiver request or appeal held pursuant to § 4.704 of this part; and,

(v) Communications between employees of the WELSA Project Office or the Bureau of Indian Affairs (BIA) and OHA employees about a probate case held pursuant to 43 CFR part 4, subpart H, unless the WELSA Project Office or BIA has filed a request for hearing, petition for reopening, or petition for reconsideration in that case.

(b) Prohibition. Any ex parte communication is prohibited.

(c) Procedure for addressing ex parte communication. (1) OHA personnel receiving an ex parte communication must place in the record for the pending proceeding or appeal the written communication or, if oral, a memorandum stating the substance of the oral communication.

(2) The affected OHA unit must provide, or order the person or entity that made the ex parte communication to provide, the communication to all parties and provide them with an opportunity to respond in writing, and any response must be placed in the record for the pending proceeding or appeal.

(d) Sanctions for ex parte communication. (1) After considering the relevant circumstances and the nature of the violation, the Director, Appeals Board, or presiding officer may impose appropriate sanctions on a party who knowingly made or knowingly caused to be made a prohibited ex parte communication. Appropriate sanctions for an ex parte communication may include:

(i) Ruling adversely on the issue that was the subject of the ex parte communication; or

(ii) Requiring the party to show cause why its claim, motion, or interest should not be dismissed, denied, or otherwise adversely affected.

(2) Before imposing sanctions, the Director, Appeals Board, or presiding officer will provide notice and an opportunity to respond.

(3) The appropriate supervisor is responsible for notifying the Director and, in accordance with Department regulations and policy, disciplining OHA personnel who knowingly made or caused to be made a prohibited ex parte communication.

§ 4.28 - Interlocutory appeals.

Interlocutory appeals from a ruling of an ALJ or IPJ are not permitted unless an ALJ or IPJ has certified the interlocutory ruling or abused their discretion in refusing a request to certify and an Appeals Board has granted permission for such an appeal. An Appeals Board will not grant permission for an interlocutory appeal except upon a showing that the interlocutory ruling involves a controlling question of law about which there are substantial grounds for a difference of opinion and that an immediate appeal will materially advance the completion of the proceeding. An interlocutory appeal will not operate to suspend the hearing unless otherwise ordered by the Appeals Board.

§ 4.29 - Disqualification of presiding officers and board members.

(a) A presiding officer or Board member must withdraw from a case if circumstances exist that would disqualify a judge under the recognized canons of judicial ethics.

(b) A party may file a motion seeking the disqualification of a presiding officer or Board member, setting forth in detail the circumstances that the party believes require disqualification. Any supporting facts must be established by affidavit or other sufficient evidence. The moving party must also send a copy of the motion to the Director.

(c) The chief judge of the appropriate OHA unit or the Director may decide whether disqualification is required if the presiding officer or Board member does not withdraw under paragraph (a) of this section or in response to a motion under paragraph (b) of this section.

§ 4.30 - Alternative dispute resolution.

While a matter is before OHA, the Director or OHA Unit may notify the parties at any time that the matter has been identified as a candidate for Alternative Dispute Resolution (ADR). The notice will describe the available options and may include an order directing the parties to participate in an assessment conference or otherwise communicate whether they are willing to participate in an ADR process. While a matter is pending before OHA, an individual party or the parties jointly may ask the Director or OHA Unit about the availability of ADR in the matter. The use of an ADR process is entirely voluntary and will only be used if all parties agree to participate.

§ 4.31 - Limiting disclosure of confidential information.

(a) Confidential information. Confidential information includes information that is exempt from public disclosure under:

(1) The Freedom of Information Act (5 U.S.C. 552);

(2) The Trade Secrets Act (18 U.S.C. 1905); or

(3) Other laws that exempt the information from public disclosure.

(b) Filing a motion for a protective order. A person or entity who intends to file a document that may contain confidential information, and who wishes to prevent or limit disclosure of that confidential information, must also file and serve a motion for a protective order. The motion for a protective order must include the following.

(1) A statement specifying the factual and legal justification for nondisclosure.

(2) A copy of the document with the information exempt from disclosure redacted, or if it is not practicable to submit a copy of the document because redaction of the information would render the document unintelligible, a description of the document.

(3) A statement indicating one of the following:

(i) That the confidential information may be disclosed to other parties to the proceeding or appeal who agree in a written affidavit or declaration under penalty of perjury to the following conditions:

(A) Not to use or disclose the information except in the context of the proceeding or appeal;

(B) Not to retain the information in any format after the conclusion of the proceeding or appeal; and

(C) To return all physical copies of the information at the conclusion of the proceeding or appeal to the person or entity who submitted the information; or

(ii) That disclosure of the identified confidential information in that document to another party to the proceeding is prohibited by law, notwithstanding the conditions provided in paragraph (b)(3)(i) of this section. This paragraph (b)(3)(ii) does not apply to hearings conducted pursuant to 5 U.S.C. 554. When this paragraph (b)(3)(ii) applies, the person or entity submitting the confidential information must include the following in the motion for a protective order:

(A) A request that the presiding officer or Appeals Board consider the confidential information as a basis for its decision without disclosing it to the other party or parties.

(B) A statement explaining why disclosure is prohibited, citing pertinent statutory or regulatory authority. If the prohibition on disclosure is intended to protect the interest of a person or entity who is not a party to the proceeding, the person or entity making the request must demonstrate that such person or entity refused to consent to the disclosure of the confidential information to other parties to the proceeding.

(c) Ruling on motion for a protective order. (1) If the motion for a protective order satisfies the requirements of paragraph (b)(3)(i) of this section, the presiding officer or Appeals Board will grant the protective order. The presiding officer or Appeals Board may direct that the information be filed under seal and will require service of the information on the other parties to the proceeding or appeal upon filing of the written agreement required in paragraph (b)(3)(i) of this section. The information will be disclosed to the parties to the proceeding or appeal only under the conditions of paragraph (b)(3)(i) of this section unless the Department determines the confidential information must be released under the Freedom of Information Act or in accordance with part 2 of this title.

(2) If the motion for a protective order satisfies the requirements of paragraph (b)(3)(ii) of this section, the presiding officer or Appeals Board will grant the protective order. The presiding officer or Appeals Board may direct that the information be filed under seal and will not disclose the information unless the Department determines the confidential information must be released under the Freedom of Information Act or in accordance with part 2 of this title.

(3) If the presiding officer or Appeals Board denies a motion for a protective order seeking to prevent disclosure of confidential information to the parties to a proceeding or appeal under paragraph (b)(3)(ii) of this section, the presiding officer or Appeals Board must provide the person or entity who submitted the information an opportunity to withdraw the information before it is further considered by the presiding officer or Appeals Board unless a Freedom of Information Act request, administrative appeal from the denial of a request, or lawsuit seeking release of the information is pending.

(d) Waiver. If the person or entity submitting a document does not specify that the document contains confidential information, the presiding officer or Appeals Board may assume that the person or entity submitting the document does not object to public disclosure of any confidential information contained in that document or may allow a reasonable period of time to redact any confidential information identified after filing.

(e) Confidential information in an OHA decision. Where a decision by a presiding officer or Appeals Board is based, in whole or in part, on confidential information subject to a protective order, the presiding officer or Appeals Board must specify the nature of the confidential information and the provision of law under which disclosure was denied and must retain the confidential information under seal as part of the official record.

§ 4.32 - Filing; service; issuance.

The provisions of this section do not apply to proceedings under subparts C, D, E, H, J, K and L of this part.

(a) Filing—(1) Generally. A document required or permitted to be filed in a proceeding must be delivered to the office where the filing is required as specified in this part or part 30 of this title, the OHA Standing Orders on Contact Information, and the OHA Standing Orders on Electronic Transmission.

(2) Methods of filing—(i) Electronic. A document may be filed electronically under the terms specified in the OHA Standing Orders on Electronic Transmission. Any Federal, State, or local agency, or any attorney representing a person or entity, must file electronically, unless otherwise specified in the OHA Standing Orders on Electronic Transmission or when the OHA unit where the filing is required has allowed non-electronic filing for good cause.

(ii) Non-electronic. Any document filed non-electronically must be delivered to the office where the filing is required at the address specified in the OHA Standing Orders on Contact Information.

(3) Timeliness—(i) Electronic. A document filed electronically is deemed timely if filed by 11:59 p.m. in the time zone of the office where the document is due on the date the document is due under the terms specified in the OHA Standing Orders on Electronic Transmission.

(ii) Non-electronic. A document not filed electronically is deemed timely filed if, on or before the last day for filing, it is sent by first-class United States mail, or other class of mail that is at least as expeditious, postage prepaid; or it is dispatched to a third-party commercial courier for delivery within 3 days. The date of mailing or dispatch must be documented by a postmark date, acceptance scan, receipt, or similar written acknowledgement from the company delivering the document for filing. A document not received within 7 business days of the filing deadline is presumed untimely, but the presumption may be overcome by the appropriate documentation establishing the date of mailing or dispatch.

(b) Service—(1) Generally. Any person or entity who files a document in a proceeding before OHA must also serve the document under the terms specified in this section and in the OHA Standing Orders on Electronic Transmission and the OHA Standing Orders on Contact Information.

(2) Service on represented parties. Service on a party known to be represented by counsel, or another designated representative, must be made on the representative.

(3) Manner of service—(i) Electronic. Service may be made electronically on the Office of the Solicitor and the bureau or office whose decision is being appealed under the terms specified in the OHA Standing Orders on Electronic Transmission. Service may be made electronically on all other persons or entities who have consented to electronic service under the terms specified in the OHA Standing Orders on Electronic Transmission.

(ii) Non-electronic. Service may be made non-electronically by United States mail or third-party commercial courier for delivery within 3 days.

(c) Issuance—(1) Electronic. A notice, order, or decision by an OHA Unit may be issued electronically under the terms specified in the OHA Standing Orders on Electronic Transmission, or in specific rules applicable to particular OHA Units or particular types of proceedings.

(2) Non-electronic. Unless otherwise specified, non-electronic issuance may be made by U.S. mail, personal delivery, or third-party commercial courier.

source: 36 FR 7186, Apr. 15, 1971, unless otherwise noted.
cite as: 43 CFR 4.32