28 USC § 2464. Security; special bond
(a) Except in cases of seizures for forfeiture under any law of the United States, whenever a warrant of arrest or other process in rem is issued in any admiralty case, the United States marshal shall stay the execution of such process, or discharge the property arrested if the process has been levied, on receiving from the respondent or claimant of the property a bond or stipulation in double the amount claimed by the libellant, with sufficient surety, to be approved by the judge of the district court where the case is pending, or, in his absence, by the collector of the port, conditioned to answer the decree of the court in such case. Such bond or stipulation shall be returned to the court, and judgment or decree thereon, against both the principal and sureties, may be secured at the time of rendering the decree in the original case. The owner of any vessel may deliver to the marshal a bond or stipulation, with sufficient surety, to be approved by the judge of the district court, conditioned to answer the decree of such court in all or any cases that are brought thereafter in such court against the vessel. Thereupon the execution of all such process against such vessel shall be stayed so long as the amount secured by such bond or stipulation is at least double the aggregate amount claimed by libellants in such suits which are begun and pending against such vessel. Similar judgments or decrees and remedies may be had on such bond or stipulation as if a special bond or stipulation had been filed in each of such suits.
(b) The court may make necessary orders to carry this section into effect, particularly in giving proper notice of any such suit. Such bond or stipulation shall be indorsed by the clerk with a minute of the suits wherein process is so stayed. Further security may be required by the court at any time.
(c) If a special bond or stipulation in the particular case is given under this section, the liability as to said case on the general bond or stipulation shall cease. The parties may stipulate the amount of the bond or stipulation for the release of a vessel or other property to be not more than the amount claimed in the libel, with interest, plus an allowance for libellant's costs. In the event of the inability or refusal of the parties to so stipulate, the court shall fix the amount, but if not so fixed then a bond shall be required in the amount prescribed in this section.