
120 F.Supp.2d 1089 (2000)
AMERICAN SPORTING GOODS, Plaintiff,
v.
UNITED STATES, Defendant.
Slip Op. 00-135, Court No. 95-05-00627.
United States Court of International Trade.
October 19, 2000.


*1090 ORDER

GOLDBERG, Judge.
In this Customs classification case, plaintiff has moved in limine to exclude the testimony of two of defendant's experts, Mary Carrillo and Susan Sheridan, and to compel a detailed summary of the testimony of defendant's third expert witness, Marian Samarin.
On February 9, 1998, plaintiff served defendant with an interrogatory asking defendant to identify its expert witnesses. On April 13, 1998, defendant responded that it had not yet identified its witnesses. Although discovery closed on June 30, 2000, defendant did not identify its expert witnesses until September 26, 2000, in compliance with an Order by the Court governing preparation of the Pretrial Order. On October 4, 2000, after plaintiff's counsel voiced objections to the surprise witnesses, the government formally served its supplemental response to plaintiff's interrogatory regarding expert witnesses.
CIT Rule 26(e)(1) requires parties "seasonably to supplement the response [to a request for discovery] with respect to any question addressed to ... the identity of each person expected to be called as an expert witness at trial ...." Because the supplemental response was delivered almost thirty-two months after the interrogatory was served, more than three months *1091 after discovery had already closed, and only two weeks before the start of trial, and because there are no mitigating circumstances to justify such a delay, defendant's supplemental response was not seasonable within the meaning of CIT Rule 26(e)(1).
Contrary to defendant's contention, the Court has the authority to impose sanctions for a violation of Rule 26(e)(1) without first issuing a separate order.[1] This authority is well established in the federal courts. See Thibeault v. Square D Co., 960 F.2d 239, 245 (1st Cir.1992); Bradley v. United States, 866 F.2d 120, 124 n. 6 (5th Cir.1989). In choosing the appropriate sanction for defendant's violation of Rule 26(e)(1), the Court is guided by the four-factor test stated in Outley v. City of New York, 837 F.2d 587, 590 (2d Cir.1988) (quoting Murphy v. Magnolia Elec. Power Ass'n, 639 F.2d 232, 235 (5th Cir.1981)). In particular, the Court is convinced that serious prejudice to the plaintiff would result from its lack of opportunity to prepare to meet the testimony of these surprise witnesses. See Thibeault, 960 F.2d at 246-47. Moreover, because the Court has already declined to grant the full length of a continuance the parties had previously requested in a consent motion, it does not wish to see the defendant achieve that continuance by means of its own lack of diligence. Accordingly, plaintiff's motion to exclude the testimony of Ms. Carrillo and Ms. Sheridan is granted.
Plaintiff also moved to compel a more detailed summary of Ms. Samarin's testimony, but rescinded this claim at the pretrial conference subject to the proviso that her testimony be confined to the topics listed in Schedule G-2 of the Pretrial Order. For this reason, plaintiff's motion in this regard is moot, and is denied.
Therefore, upon consideration of plaintiff's motion in limine to exclude testimony of defendant's experts Ms. Carrillo and Ms. Sheridan, and to compel a detailed summary of Ms. Samarin's testimony; and upon all other papers; and upon due deliberation, it is hereby ORDERED that plaintiff's motion to preclude the testimony of Ms. Carrillo and Ms. Sheridan at the trial of this action is GRANTED; and it is further
ORDERED that plaintiff's motion to compel a detailed summary of Ms. Samarin's testimony is DENIED.
SO ORDERED.
NOTES
[1]  Because the Federal Rules were amended in 1993 to explicitly allow preclusion for this type of discovery violation, the Court consults pre-amendment caselaw.
