This is an appeal from the district court’s judgment rejecting the claims of 14,122 current and former federal criminal investigators or other law enforcement officers. The plaintiffs were employed between 1984 and 1995 in federal agencies such as the Customs Service, the Secret Service, the Internal Revenue Service, the Drug Enforcement Agency and the Bureau of Alcohol, Tobacco and Firearms. 1 Between February 16, 1990, and December 13,1995, they filed civil actions in the Court of Federal Claims alleging that they had been wrongfully classified as exempt from the overtime provisions of the Fair Labor Standards Act (“FLSA”), 29 U.S.C. § 201 et seq. During the same period, each employee also filed an administrative claim at the Government Accounting Office. Of the *422 14,122 employees, 11,247 brought suit before June 30,1994.
In a consolidated case, the Court of Federal Claims held that certain grades of employees — namely, GS-9 and GS-11 investigators at BATF, DEA, IRS, and Secret Service, and GS-9 investigators at Customs Service— were not exempt from FLSA, and thus had been entitled to overtime pay.
Adams v. United States,
The authority of the GAO to settle claims against the United States is found in the Barring Act, 31 U.S.C. § 3702.
2
According to the GAO, “to settle a claim means to administratively determine the validity of that claim.... Settlement includes the making of both factual and legal determinations. The authority to settle and adjust claims does not, however, include the authority to compromise claims.” General Acoounting Office, Principles of Federal Appropriations Law 11-6 (1982);
see also Illinois Surety Co. v. United States ex rel. Peeler,
Lawsuits for back pay under FLSA are subject to the Portal-to-Portal Act’s statute of limitations — two years for non-willful violations and three years for willful ones.
3
See
29 U.S.C. § 255(a). Shortly after FLSA coverage was extended to federal employees, however, the GAO ruled that “the time limitation for the filing of claims by federal employees under the FLSA which may be considered by our office is six years.... ”
In re Transportation Sys. Ctr.,
In back pay and overtime cases, the statute of limitations determines how many years of compensation each claimant receives. Since these are continuing claims, a separate cause of action accrues each payday. A six-year statute of limitations means that an employee could recover six years of back pay or overtime compensation dating from the time he or she first filed suit.
On May 23, 1994, the GAO overruled
Transportation Systems
Center.
4
In
In re Joseph M. Ford,
*423 On July 1, 1994, Senator Sarbanes introduced legislation intended, he said, “to reverse a very destructive ruling by the General Accounting Office to apply a retroactive change in the statute of limitations from 6 years to 2 years for Federal employees to file' back pay claims under” FLSA. 140 CoNG. Reo. S8400 (July 1, 1994). As enacted on September 80, 1994, § 640 of the Treasury, Postal Service and General Government Appropriations Act of 1995, Pub.L. No. 103-329, 108 Stat. 2383, 2432, provided:
In the administration of Section 3702 of title 31, United States Code, the Comptroller General of the United States shall apply a 6-year statute of limitations to any claim of a Federal Employee under the Fair Labor Standards Act of 1938 (29 U.S.C. § 201 et seq.) for claims filed before June 30,1994.
Senator Sarbanes added that while “the underlying question regarding the appropriate length of the statute of limitation for FLSA claims is one of continuing debate ... under no circumstances should GAO apply the proposed change retroactively.” 140 CoNG. Rec. S8400.
In what was apparently its first decision after passage of § 640, the GAO applied a six-year statute of limitations to claims filed on May 22, 1989, and pending before it as of June 30, 1994.
See In re Molly D. Kinsley,
. Meanwhile, counsel for the employees again contacted the GAO and requested a meeting to resolve pending claims in light of § 640. The GAO acknowledged that “the Act of Congress' has modified our Ford decision” but pointed out that “our regulations require that the agency from which the claim originated shall initially adjudicate the claim. See 4 C.F.R. § 31.4 (1994).” 5 Counsel then brought their clients! claims to the attention of the employing agencies, each of which responded that § 640 gave specific authority to apply a six-year statute of limitations only to the Comptroller General and that the agencies themselves were without statutory authority to do so. Counsel appealed these denials to the, GAO, but the GAO did not respond. However, with regard to an unrelated FLSA case, the GAO informed the Personnel Director of the U.S. Customs Service that it did “not intend to issue a decision in Marvin B. Atkinson ... until the Treasury, Postal Service, and General Government Appropriations Bill, 1996 ... is enacted (because of the possible retroactive repeal of § 640).”
In November 1995, Congress amended § 640 to state:
This section shall not apply to any claim where the employee has received any com-, pensation for overtime hours worked during the period covered by the claim under any other provision of law, including, but not limited to, 5 U.S.C. 5545(c), or to any claim for compensation for time spent commuting between the employee’s residence and duty station.
Pub.L. No. 104-52, 109 Stat. 468. Introducing this amendment, Representative Light-foot said that the GAO, in its 1978 decision, “made a mistake and established regulations stating that Federal employees can get up to 6 years back pay for overtime claims” under the FLSA. The GAO discovered and corrected “its mistake,” but then the 103rd Congress “reversed GAO, and passed a law allowing Federal workers to get up to 6 years back pay. The problem is that this act will cost as much as $460 million_ The conferees were faced with a choice — either pay hundreds of millions for work done many years ago ... or give the Federal workers the same rights as their private sector coun-terparts_ [W]e included language providing for the same treatment for public and *424 private workers ... not just because it costs a lot of money, but because it is fair.” 141 CONG. REC. H12376 (Nov. 15,1995).
After the amendment of § 640, the GAO decided
Atkinson,
a case in which the plaintiffs here had been granted leave to intervene.
In re Marvin B. Atkinson,
On October 27, 1995 — before passage of the amendment to § 640 or the GAO’s decision in Atkinson —plaintiffs brought this action in district court seeking “mandamus and injunctive and declaratory relief.” The complaint challenged Ford’s adoption of a shortened, retroactive statute of limitation; the GAO’s insistence that plaintiffs bring their claims before their respective agencies; the refusal of those agencies to grant the claims; and the GAO’s refusal to pass on their appeals. In Supplemental Complaints dated December 13, 1995, and January 29, 1996, plaintiffs added the amendment to § 640 and the GAO’s decision in Atkinson to their list of requests for declaratory relief.
Plaintiffs alleged that the GAO’s decision in Ford and the amendment to § 640 had offended due process. They asserted property interests in their back pay claims before the GAO and in their earned but unpaid compensation. 6 On October 10, 1996, the district court (Judge June L. Green) granted defendants’ motion for summary judgment. The court later denied plaintiffs’ motion for reconsideration. Our review of a grant of summary judgment is de novo. With one exception, we shall affirm the district court’s judgment substantially for the reasons stated in the court’s thorough and well-reasoned opinion. 7
The district court held that the GAO’s prior application of a six-year statute of limitations had been an error.
Adams v. Bowsher,
As for plaintiffs’ equal protection claim, the district court determined that plaintiffs and the
Kinsley
claimants, whose claims had been subject to a six-year statute of limitations, were not similarly situated.
Id.
at 45. Unlike the claimants in
Kinsley,
plaintiffs did not have a sufficiently developed factual record for their claims to be processed by the GAO prior to the enactment of the amendment. In addition, plaintiffs charged that the GAO violated the Administrative Procedure Act in deciding
Ford
and in failing to handle their cases in a timely
fashion
—i.e., before § 640 was amended. Such claims were moot, the district court concluded, because Congress “had impliedly adopted the two or three-year limitation period” and the amendment “passe[d] constitutional muster.”
While We therefore are in general agreement with the district court, we cannot affirm the portion of the court’s decision holding that plaintiffs’ “property” had not been taken without just compensation, in violation of the Fifth Amendment to the Constitution.
See Adams,
Repeating the argument they made below, plaintiffs argue that “deprivation of [their] previously earned FLSA wages constitutes an unlawful taking of [their] labor without just compensation under the Fifth Amendment.” Brief for Appellants at 19. We are without- jurisdiction to decide this claim.. The usual remedy for unconstitutional takings is “a suit for money damage (i.e., the ‘just compensation’ that the Constitution assures) under the Tucker Act in the Court of Federal Claims, 28 U.S.C. § 1491....”
8
Student Loan Marketing Ass’n v. Riley,
For the reasons stated above, the district court’s grant of summary judgment is affirmed in part and reversed and remanded in part.
So ordered.
Notes
. The original defendants were then Comptroller General of the General Accounting Office Charles A. Bowsher, and the heads of the various federal agencies. On September 30, 1996, Mr. Bowsher retired. The acting Comptroller General, James Hinchman, was substituted as defendant.
. The GAO's authority to settle federal employees' compensation claims has since been transferred to the Office of Personnel Management. See 31 U.S.C.A. § 3702(a)(2) (West Supp.1998).
. One of the purposes of the Portal-to-Portal Act, enacted in response to
Anderson v. Mt. Clemens Pottery Co.,
.In doing so, the GAO also overruled
In re Henry G. Tomkowiak, 67
Comp. Gen. 247 (1988), and
In re Federal Firefighters,
. 4 C.F.R. § 31.4 provides in part:
A claimant should file his or her claim with the administrative agency or department out of whose activities the claim arose. The agency shall initially adjudicate the claim. If the claimant is not satisfied with the agency’s determination, he or she may appeal that determination to the Claims Group, General Accounting Office. Claims which cannot be resolved by the department or agency shall he transmitted to the Claims Group, General Accounting Office, for resolution.
. On appeal, plaintiffs also maintain that they have a property interest in the statute of limitations itself. Brief for Appellants at 45. They cite no support for the assertion of such an interest and we are aware of none. As explained earlier, the amount of overtime that plaintiffs can claim is limited by the governing statute of limitations. Thus the two are essentially the same and the same analysis applies.
. Appellees have moved to strike section III of plaintiff-appellants' reply brief on the ground that it raised issues not advanced in their opening brief. Plaintiffs there contended for the first time that the Back Pay Act, 5 U.S.C. § 5596, and the Civil Service Reform Act, 5 U.S.C. § 7121(a), display congressional intent to treat federal and private sector employees differently.
See
Reply Brief for Appellants at 10-13. It is our practice not to consider any issue “raised for the first time in a reply brief,” a point at which the opposing side has no opportunity to respond.
See Rollins Environmental Servs., Inc. v. EPA,
. In relevant part 28 U.S.C. § 1491(a)(1) provides:
The United States Court of Federal Claims shall have jurisdiction to render judgment upon any claim against the United States founded either upon the Constitution, or any Act of Congress or any regulation of an executive department, or upon any express or implied contract with the United States, or for liquidated or unliquidated damages in cases not sounding in tort.
. After oral argument, the parties called our attention to two recently decided
cases
—National
Treas. Employees Union & Federal Deposit Ins. Corp.,
53 F.L.R.A. No. 134 (Feb. 27, 1998); and
Eastern Enterprises
v.
Apfel,
- U.S. -,
