28 USC 1659: ITC Stay Scope, Filing, and Duration

28 U.S.C. § 1659 requires a federal district court to stay claims that overlap with a pending U.S. International Trade Commission investigation, once a party who is a respondent in that ITC proceeding asks for the stay on time. The pause lasts until the ITC’s determination becomes final, and the district court then gets access to the evidentiary record built at the Commission.¹

The stay is mandatory when its conditions are met. Courts do not balance hardships or weigh the equities the way they would with a discretionary stay. Either the statutory boxes are checked or they aren’t.

Who Can Request the Stay

Only a party in the district court case who is also a respondent in the parallel ITC investigation can invoke § 1659. Complainants cannot request it, and neither can anyone who appears in just one of the two proceedings.¹

The request must come within 30 days after the party is named as a respondent in the ITC proceeding, or within 30 days after the district court action is filed, whichever falls later.¹ That deadline is strict. In March 2026, the Federal Circuit held in Ascendis Pharma A/S v. BioMarin Pharmaceutical Inc. that a respondent who missed the 30-day window in an original declaratory judgment action could not reset the clock by dismissing and refiling a new case involving the same parties and issues.² Miss it once and the right to the mandatory stay is gone.

What the Stay Actually Covers

Section 1659 does not freeze the entire district court case. It pauses only those claims “that involve the same issues involved in the proceeding before the Commission.”¹

In most cases the overlap is substantial, so the stay ends up halting the bulk of the litigation. But if the district court complaint contains claims with no counterpart in the ITC investigation, those claims can potentially move forward. A party that wants that separation should flag it early so the court can decide which portions of the case go on the shelf and which keep moving.

Filing the Motion

The stay does not happen automatically. A qualifying party must file a motion in the district court, identify the ITC investigation by number, attach the ITC complaint and notice of investigation, and explain how the district court claims overlap with the issues before the Commission.

Because the stay is mandatory once the statutory conditions are met, the motion’s work is proving those conditions: the movant is a respondent in the ITC case, the claims overlap, and the request is timely. Objections tend to be narrow for the same reason. Courts do not entertain arguments about prejudice or convenience. The real disputes are usually whether the claims actually overlap and whether the 30-day deadline was met.

When the ITC Determination Becomes Final

The stay lasts “until the determination of the Commission becomes final,” and what “final” means depends on the outcome.

When the ITC finds a Section 337 violation and orders a remedy, that determination goes to the President for a 60-day policy review. If the President does not disapprove it within 60 days, or approves it earlier, the determination becomes final.³ If the President disapproves it for policy reasons, the determination and any remedial orders lose their force.⁴

Determinations that find no violation are final when issued, because there is no remedial order for the President to review.⁵ That distinction matters. If the ITC rules for the respondent, the § 1659 stay dissolves immediately, and the district court case can resume without waiting through the 60-day presidential review window.

One point worth being careful about: the 60-day window belongs to the President, not to a party planning an appeal. A party that wants to challenge the ITC’s final determination in the Federal Circuit has its own separate 60-day appeal window that runs after the determination becomes final.⁵ The § 1659 stay ends when the determination becomes final. It does not extend through Federal Circuit review.

How Long the Pause Typically Lasts

ITC investigations completed on their merits have averaged roughly 15 to 18 months in recent fiscal years. In fiscal year 2025, the average completion time for investigations decided on the merits was about 16.3 months, with the longest running over 30 months.⁶ Add the 60-day presidential review period for violation findings, and a district court case can sit idle for a year and a half or longer.

For respondents who requested the stay, that delay postpones expensive district court discovery and trial preparation, and it lets the ITC investigation serve as a full-scale preview. The issues get litigated before an administrative law judge, expert and fact witnesses are deposed, and a detailed record is created. The ITC’s findings do not bind the district court, but they carry persuasive weight. A respondent who wins at the ITC has strong material for summary judgment; a complainant who wins gains settlement leverage because the respondent faces relitigating issues it already lost.

Plaintiffs seeking money damages absorb most of the delay. Settlement dynamics shift when a case sits frozen, and the financial pressure of waiting can push parties toward resolutions they would not have accepted at the outset.

The ITC Record Moves to the District Court

Subsection (b) of § 1659 is one of the statute’s most practically useful features. After the stay dissolves, the ITC’s evidentiary record must be transmitted to the district court and is admissible in the civil action.¹ That includes deposition transcripts, expert reports, hearing exhibits, and other evidence developed at the Commission. The provision overrides the ITC’s usual confidentiality rules under Section 337(n)(1), so even material designated confidential at the ITC can be transferred.

The district court still controls how the material is used. It must issue whatever protective order it considers necessary to safeguard confidential business information, and the record is admissible only to the extent the Federal Rules of Evidence and the Federal Rules of Civil Procedure allow.¹ ITC regulations also require that a party requesting the stay or its dissolution notify the Commission Secretary within 10 days so the record can be prepared for transfer.⁷

The practical benefit is significant. Instead of rebuilding the evidentiary record from scratch, both sides draw on work already done at the ITC. Expert reports and technical evidence that cost hundreds of thousands of dollars to develop become available without re-creation.

Lifting the Stay

Once the ITC determination becomes final, the stay dissolves by operation of the statute, but someone still has to tell the district court. A party should file a notice or motion informing the court, attach the relevant ITC orders, and ask that the case be placed back on the active docket. The court typically issues a new scheduling order.

If the ITC investigation ends before a final determination because the parties settle or the complainant withdraws, the basis for the stay disappears. Notify the district court promptly and move to dissolve. Courts generally grant these requests without difficulty.

Requests to terminate the stay early while the ITC investigation is still active face a much harder path. Because the stay is mandatory, courts are reluctant to lift it before the statutory trigger occurs. A party seeking early termination would need to show something like a fundamental change in the scope of the ITC case that eliminates the overlap with the district court claims.

A Note on Counterclaims

Section 1659 governs stays of district court cases that parallel ITC investigations. It does not govern what happens to counterclaims raised inside an ITC proceeding. Those counterclaims are removed to a federal district court under 28 U.S.C. § 1446, and the ITC investigation continues without being slowed by them.⁸³ If the removed counterclaim ends up overlapping with the ITC investigation’s issues, § 1659 can then come into play for that new district court case on the same terms described above.

1
Office of the Law Revision Counsel. 28 U.S. Code 1659 – Stay of Certain Actions Pending Disposition of Related Proceedings Before the United States International Trade Commission
2
United States Court of Appeals for the Federal Circuit. Ascendis Pharma A/S v. BioMarin Pharmaceutical Inc.
3
Office of the Law Revision Counsel. 19 U.S. Code 1337 – Unfair Practices in Import Trade
4
GovInfo. 19 U.S. Code 1337 – Unfair Practices in Import Trade
5
U.S. International Trade Commission. Section 337 Investigations Frequently Asked Questions
6
United States International Trade Commission. Section 337 Statistics: Average Length of Investigations
7
eCFR. 19 CFR 210.39 – In Camera Treatment of Confidential Information
8
Office of the Law Revision Counsel. 28 U.S. Code 1446 – Procedure for Removal of Civil Actions