(e) Appearance or Answer.
(1) Notice of Appearance. A defendant that has no objection or defense to the taking of its property may serve a notice of appearance designating the property in which it claims an interest. The defendant must then be given notice of all later proceedings affecting the defendant.
(2) Answer. A defendant that has an objection or defense to the taking must serve an answer within 21 days after being served with the notice. The answer must:
(A) identify the property in which the defendant claims an interest;
(B) state the nature and extent of the interest; and
(C) state all the defendant's objections and defenses to the taking.
(3) Waiver of Other Objections and Defenses; Evidence on Compensation. A defendant waives all objections and defenses not stated in its answer. No other pleading or motion asserting an additional objection or defense is allowed. But at the trial on compensation, a defendant一whether or not it has previously appeared or answered一may present evidence on the amount of compensation to be paid and may share in the award.

(f) Amending Pleadings. Without leave of court, the plaintiff may一as often as it wants一amend the complaint at any time before the trial on compensation. But no amendment may be made if it would result in a dismissal inconsistent with Rule 71.1(i)(1) or
(2). The plaintiff need not serve a copy of an amendment, but must serve notice of the filing, as provided in Rule 5(b), on every affected party who has appeared and, as provided in Rule 71.1(d), on every affected party who has not appeared. In addition, the plaintiff must give the clerk at least one copy of each amendment for the defendants' use, and additional copies at the request of the clerk or a defendant. A defendant may appear or answer in the time and manner and with the same effect as provided in Rule 71.1(e).
(g) Substituting Parties. If a defendant dies, becomes incompetent, or transfers an interest after being joined, the court may, on motion and notice of hearing, order that the proper party be substituted. Service of the motion and notice on a nonparty must be made as provided in Rule 71.1(d)(3).

(h) Trial of the Issues.
(1) Issues Other Than Compensation; Compensation. In an action involving eminent domain under federal law, the court tries all issues, including compensation, except when compensation must be determined:
(A) by any tribunal specially constituted by a federal statute to determine compensation; or
(B) if there is no such tribunal, by a jury when a party demands one within the time to answer or within any additional time the court sets, unless the court appoints a commission.
(2) Appointing a Commission; Commission's Powers and Report.
(A) Reasons for Appointing. If a party has demanded a jury, the court may instead appoint a three-person commission to determine compensation because of the character, location, or quantity of the property to be condemned or for other just reasons.
(B) Alternate Commissioners. The court may appoint up to two additional persons to serve as alternate commissioners to hear the case and replace commissioners who, before a decision is filed, the court finds unable or disqualified to perform their duties. Once the commission renders its final decision, the court must discharge any alternate who has not replaced a commissioner.
(C) Examining the Prospective Commissioners. Before making its appointments, the court must advise the parties of the identity and qualifications of each prospective commissioner and alternate, and may permit the parties to examine them. The parties may not suggest appointees, but for good cause may object to a prospective commissioner or alternate.
(D) Commission's Powers and Report. A commission has the powers of a master under Rule 53(c). Its action and report are determined by a majority. Rule 53(d), (e), and (f) apply to its action and report.

(i) Dismissal of the Action or a Defendant.
(1) Dismissing the Action.
(A) By the Plaintiff. If no compensation hearing on a piece of property has begun, and if the plaintiff has not acquired title or a lesser interest or taken possession, the plaintiff may, without a court order, dismiss the action as to that property by filing a notice of dismissal briefly describing the property.
(B) By Stipulation. Before a judgment is entered vesting the plaintiff with title or a lesser interest in or possession of property, the plaintiff and affected defendants may, without a court order, dismiss the action in whole or in part by filing a stipulation of dismissal. And if the parties so stipulate, the court may vacate a judgment already entered.
(C) By Court Order. At any time before compensation has been determined and paid, the court may, after a motion and hearing, dismiss the action as to a piece of property. But if the plaintiff has already taken title, a lesser interest, or possession as to any part of it, the court must award compensation for the title, lesser interest, or possession taken.
(2) Dismissing a Defendant. The court may at any time dismiss a defendant who was unnecessarily or improperly joined.
(3) Effect. A dismissal is without prejudice unless otherwise stated in the notice, stipulation, or court order.

(j) Deposit and Its Distribution.
(1) Deposit. The plaintiff must deposit with the court any money required by law as a condition to the exercise of eminent domain and may make a deposit when allowed by statute.
(2) Distribution; Adjusting Distribution. After a deposit, the court and attorneys must expedite the proceedings so as to distribute the deposit and to determine and pay compensation. If the compensation finally awarded to a defendant exceeds the amount distributed to that defendant, the court must enter judgment against the plaintiff for the deficiency. If the compensation awarded to a defendant is less than the amount distributed to that defendant, the court must enter judgment against that defendant for the overpayment.
(k) Condemnation Under a State's Power of Eminent Domain. This rule governs an action involving eminent domain under state law. But if state law provides for trying an issue by jury一or for trying the issue of compensation by jury or commission or both一 that law governs.
(l) Costs. Costs are not subject to Rule 54(d).
(As added Apr. 30, 1951, eff. Aug. 1, 1951; amended Jan. 21, 1963, eff. July 1, 1963; Apr. 29, 1985, eff. Aug. 1, 1985; Mar. 2, 1987, eff. Aug. 1, 1987; Apr. 25, 1988, eff. Aug. 1, 1988; Pub. L. 100-690, title VII, §7050, Nov. 18, 1988, 102 Stat. 4401; Apr. 22, 1993, eff. Dec. 1, 1993; Mar. 27, 2003, eff. Dec. 1, 2003; Apr. 30, 2007, eff. Dec. 1, 2007; Mar. 26, 2009, eff. Dec. 1, 2009.)

Rule 72. Magistrate Judges: Pretrial Order
(a) Nondispositive Matters. When a pretrial matter not dispositive of a party's claim or defense is referred to a magistrate judge to hear and decide, the magistrate judge must promptly conduct the required proceedings and, when appropriate, issue a written order stating the decision. A party may serve and file objections to the order within 14 days after being served with a copy. A party may not assign as error a defect in the order not timely objected to. The district judge in the case must consider timely objections and modify or set aside any part of the order that is clearly erroneous or is contrary to law.

(b) Dispositive Motions and Prisoner Petitions.
(1) Findings and Recommendations. A magistrate judge must promptly conduct the required proceedings when assigned, without the parties' consent, to hear a pretrial matter dispositive of a claim or defense or a prisoner petition challenging the conditions of confinement. A record must be made of all evidentiary proceedings and may, at the magistrate judge's discretion, be made of any other proceedings. The magistrate judge must enter a recommended disposition, including, if appropriate, proposed findings of fact. The clerk must immediately serve a copy on each party as provided in Rule 5(b).
(2) Objections. Within 14 days after being served with a copy of the recommended disposition, a party may serve and file specific written objections to the proposed findings and recommendations. A party may respond to another party's objections within 14 days after being served with a copy. Unless the district judge orders otherwise, the objecting party must promptly arrange for transcribing the record, or whatever portions of it the parties agree to or the magistrate judge considers sufficient.
(3) Resolving Objections. The district judge must determine de novo any part of the magistrate judge's disposition that has been properly objected to. The district judge may accept, reject, or modify the recommended disposition; receive further evidence; or return the matter to the magistrate judge with instructions.
(As added Apr. 28, 1983, eff. Aug. 1, 1983; amended Apr. 30, 1991, eff. Dec. 1, 1991; Apr. 22, 1993, eff. Dec. 1, 1993; Apr. 30, 2007, eff. Dec. 1, 2007; Mar. 26, 2009, eff. Dec. 1, 2009; Apr. 24, 2023, eff. Dec. 1, 2023.)

Rule 73. Magistrate Judges: Trial by Consent; Appeal
(a) Trial by Consent. When authorized under 28 U.S.C. §636(c), a magistrate judge may, if all parties consent, conduct a civil action or proceeding, including a jury or nonjury trial. A record must be made in accordance with 28 U.S.C. §636(c)(5).
(b) Consent Procedure.
(1) In General. When a magistrate judge has been designated to conduct civil actions or proceedings, the clerk must give the parties written notice of their opportunity to consent under 28 U.S.C. §636(c). To signify their consent, the parties must jointly or separately file a statement consenting to the referral. A district judge or magistrate judge may be informed of a party's response to the clerk's notice only if all parties have consented to the referral.
(2) Reminding the Parties About Consenting. A district judge, magistrate judge, or other court official may remind the parties of the magistrate judge's availability, but must also advise them that they are free to withhold consent without adverse substantive consequences.
(3) Vacating a Referral. On its own for good cause—or when a party shows extraordinary circumstances一the district judge may vacate a referral to a magistrate judge under this rule.
(c) Appealing a Judgment. In accordance with 28 U.S.C. §636(c)(3), an appeal from a judgment entered at a magistrate judge's direction may be taken to the court of appeals as would any other appeal from a district-court judgment.
(As added Apr. 28, 1983, eff. Aug. 1, 1983; amended Mar. 2, 1987, eff. Aug. 1, 1987; Apr. 22, 1993, eff. Dec. 1, 1993; Apr. 11, 1997, eff. Dec. 1, 1997; Apr. 30, 2007, eff. Dec. 1, 2007.)

Rule 74. [Abrogated (Apr. 11, 1997, eff. Dec. 1, 1997).]
Rule 75. [Abrogated (Apr. 11, 1997, eff. Dec. 1, 1997).]
Rule 76. [Abrogated (Apr. 11, 1997, eff. Dec. 1, 1997).]
TITLE X. DISTRICT COURTS AND CLERKS: CONDUCTING BUSINESS; ISSUING ORDERS

Rule 77. Conducting Business; Clerk's Authority; Notice of an Order or Judgment
(a) When Court Is Open. Every district court is considered always open for filing any paper, issuing and returning process, making a motion, or entering an order.
(b) Place for Trial and Other Proceedings. Every trial on the merits must be conducted in open court and, so far as convenient, in a regular courtroom. Any other act or proceeding may be done or conducted by a judge in chambers, without the attendance of the clerk or other court official, and anywhere inside or outside the district. But no hearing—other than one ex parte—may be conducted outside the district unless all the affected parties consent.