UNPUBLISHED

UNITED STATES COURT OF APPEALS
                FOR THE FOURTH CIRCUIT


UNITED STATES POSTAL SERVICE,          
                Plaintiff-Appellant,
                 v.
                                                  No. 99-2583
NATIONAL POSTAL PROFESSIONAL
NURSES,
               Defendant-Appellee.
                                       
           Appeal from the United States District Court
            for the District of Maryland, at Greenbelt.
               Frederic N. Smalkin, District Judge.
                          (CA-99-1633-S)

                      Argued: September 26, 2000

                      Decided: October 25, 2000

     Before NIEMEYER and TRAXLER, Circuit Judges, and
Frederick P. STAMP, Jr., Chief United States District Judge for the
     Northern District of West Virginia, sitting by designation.



Affirmed by unpublished per curiam opinion.


                             COUNSEL

ARGUED: Alfred R. Mollin, Appellate Staff, Civil Division,
UNITED STATES DEPARTMENT OF JUSTICE, Washington,
D.C., for Appellant. Richard S. Edelman, O’DONNELL,
SCHWARTZ & ANDERSON, P.C., Washington, D.C., for Appellee.
ON BRIEF: David W. Ogden, Acting Assistant Attorney General,
2       U.S. POSTAL SERVICE v. NATIONAL POSTAL PROFESSIONAL NURSES

Robert P. Crouch, Jr., United States Attorney, Barbara C. Biddle,
Appellate Staff, Civil Division, UNITED STATES DEPARTMENT
OF JUSTICE, Washington, D.C.; R. Andrew German, Managing
Counsel, Legal Policy, Stephan J. Boardman, Legal Policy, UNITED
STATES POSTAL SERVICE, Washington, D.C., for Appellant.
Melinda K. Holmes, O’DONNELL, SCHWARTZ & ANDERSON,
P.C., Washington, D.C., for Appellee.



Unpublished opinions are not binding precedent in this circuit. See
Local Rule 36(c).


                                OPINION

PER CURIAM:

   The United States Postal Service commenced this action under 39
U.S.C. § 1208(b) to challenge an arbitrator’s opinion and award dated
February 28, 1999, in favor of the National Postal Professional Nurses
Union ("the Union"), relating to the Union members’ grievances
involving the Postal Service’s use of contract nurses. The Postal Ser-
vice’s complaint sought a "declaration and injunctive relief vacating
the damages, costs, and fees awarded by the arbitrator," based on the
allegation that the arbitrator "exceeded the scope of his authority, and
failed to interpret and apply the parties’ [collective bargaining agree-
ment]." Later, without substantively altering its complaint, the Postal
Service amended it to allege that it was seeking not only to "vacate"
the arbitrator’s award but also to "modify" it.

  The Union filed a motion to dismiss the Postal Service’s complaint
because the complaint was filed more than 30 days after the award
had been delivered to the Postal Service, a limitations period bor-
rowed from state law.1 See Maryland Uniform Arbitration Act, Md.
    1
   Because the parties assumed that the Maryland state law supplied the
appropriate limitations period before the district court, we need not deter-
mine whether that assumption was correct.
    U.S. POSTAL SERVICE v. NATIONAL POSTAL PROFESSIONAL NURSES          3

Code Ann., Cts. & Jud. Proc. Art. § 3-224(a) (providing that a petition
to vacate an arbitration award must be filed within 30 days after
delivery of the award to the petitioner); Md. R. Spec. P. 15-101 (ren-
dering the statutes of limitations set out in the Arbitration Act applica-
ble to proceedings involving arbitration awards to which the
Arbitration Act is otherwise inapplicable, such as awards made pursu-
ant to a collective bargaining agreement). In response to the Union’s
motion to dismiss, the Postal Service noted that it not only sought that
the award be vacated but also that it be modified, relief for which the
statute of limitations in Maryland is 90 days. See Md. Code Ann., Cts.
& Jud. Proc. Art. § 3-223(a) (providing that a petition "to modify or
correct the award" shall be filed within 90 days after delivery of a
copy of the award). It argued, therefore, that its filing made within 90
days of its receipt of the award was timely. The district court granted
the Union’s motion to dismiss because the Postal Service’s original
complaint only sought to vacate the arbitrator’s award and therefore
was not filed within the 30 day statute of limitations provided by § 3-
224(a). With respect to the amended complaint, the court, quoting
Federal Rule of Civil Procedure 15(c)(1), ruled that it did not relate
back to the original filing date because relation back applies only
when "permitted by the law that provides the statute of limitations
applicable to the action." The court granted the Union’s motion to dis-
miss because the statute of limitations borrowed from Maryland for
reviewing arbitrator’s awards is mandatory.

   In affirming for substantially the same reasons given by the district
court, we note in addition that the Postal Service’s amended com-
plaint was substantively no different from its original complaint, and
the Postal Service’s challenge to the arbitrator’s award in both com-
plaints could only be rectified by vacation, not modification, of the
award. Cf. Apex Plumbing Supply, Inc. v. United States Supply Co.,

, 194 (4th Cir. 1998) (holding, in construing the Federal
Arbitration Act, that the remedy of modification of an "evident mis-
calculation of figures" could only apply to mathematical errors
appearing on the face of the award).

  At oral argument, counsel for both parties seemed to agree, how-
ever, that part of the arbitrator’s award erroneously duplicated dam-
ages. The Union apparently sought damages at the Chicago BMC
health unit in the amount of $256,290 for the period from November
4       U.S. POSTAL SERVICE v. NATIONAL POSTAL PROFESSIONAL NURSES

21, 1993, through August 2, 1997, or, in the alternative, in the amount
of $355,005 for an overlapping period commencing on the same date,
November 21, 1993, but extending longer, through November 2,
1998, as the arbitrator might find appropriate. Instead of selecting one
of the alternative periods, the arbitrator apparently added together the
damages for the two overlapping periods, thus awarding the Union
duplicative damages in the amount of $611,295. The Union assured
this court that it would demand only the single damages in the amount
of $355,005, a sum that the Postal Service agreed was appropriate.
While we have no jurisdiction to modify the arbitrator’s award, we
assume that the Union will not demand $611,295 for damages at the
Chicago BMC health unit, but rather $355,005.

    For the reasons given, the judgment of the district court is

                                                          AFFIRMED.2
    2
   The Union argued also that the Postal Service’s notice of appeal was
deficient in failing to identify the limitations issue to us. See Fed. R.
App. P. 3(c)(1)(b). We conclude, however, that the notice was adequate
and that the Union was not prejudiced, having recognized the correct
issue and briefed it fully. See Canady v. Crestar Mortgage Corp., 

, 973-74 (4th Cir. 1997).