*549 OPINION OF THE COURT
Linder and Associates, Inc. (Linder) appeals from the Magistrate Judge’s 1 order denying recovery for damages Linder sustained in the lower level of its building during a flood in 1996. Linder bases its claim for recovery on a flood insurance policy issued by Aetna Casualty and Surety Company (Aetna) pursuant to the National Flood Insurance Program (NFIP). The district court denied coverage finding that the lower level was a basement and, thus, that Linder’s damages were excludable under the policy’s basement exclusion. We affirm.
I.
Linder owns a multi-level building located on Yunker Street in McKees Rocks, Pennsylvania, and uses the building to conduct its furniture retail and refurbishing business. Since 1988, Linder has obtained flood insurance for its building through Aetna, a “Write Your Own” (WYO) company under the NFIP.
See
44 C.F.R. § 62.23-62.24.
2
Aetna issued Linder a standard flood insurance policy (SFIP), the terms of which are prescribed by the Federal Emergency Management Agency’s (FEMA’s) regulations.
See Nelson v. Becton,
The lower level or alley side of Linder’s building includes two garage doors used by trucks to pick up and deliver furniture incident to Linder’s business. The lower level floor is approximately four inches below the threshold of the garage doors, and concrete ramps have been installed to facilitate entering and leaving. According to Linder’s owner, the alley also was “a few inches down from the threshold” when he purchased the building in 1978. Trial Tr. at 105, reprinted in App. at 310. However, no one knows the exact height differential between the alley and the threshold at that time.
Between 1978 and 1996, crushed limestone gravel was dumped into the alley on four different occasions, raising the surface level of the alley to the same height as the threshold. The limestone had been dumped over the years for the sole purpose of keeping the alley level. No one is sure how much the alley has risen since 1978, but Linder’s expert testified that he found two inches of crushed limestone adjacent to the garage doors in 1997.
A flood in January 1996 damaged most of the.furniture stored in the lower level of Linder’s building. After Linder filed a claim with Aetna under the SFIP, Aetna’s claims adjuster, Robert Massof, investigated Lin-der’s building. Mr. Massof determined that the entire lower level floor was below ground level. He believed that the lower level floor at the rear side of the building was below ground level because the floor was lower than the alley. Aetna, relying on the basement exclusion and Mr. Massofs findings, refused to provide coverage for damages occurring in the lower level.
Linder subsequently filed suit, 3 contending that the lower level was not a “basement” as defined in the policy. Linder conceded that three sides of the lower level floor were well below ground level, but argued that the floor at the rear side of the building was not below ground level. Without supporting evidence, the insured argued the term “ground level” *550 should be defined as the natural grade existing at the time the building was built, and not as the surface level of the built-up alley. The Magistrate Judge disagreed with Linder and, after a one day bench tidal, entered judgment in favor of Aetna.
II.
It is well settled that federal common law governs the interpretation of the SFIP at issue here.
See McHugh v. United Serv. Auto. Ass’n,
We utilize “standard insurance law principles” to construe the SFIP.
Id.
(quotations omitted);
see also Carneiro Da Cunha,
In this ease, we conclude that the SFIP clearly and unambiguously precludes coverage for damages in Linder’s lower level. The SFIP defines “basement” as “any area of the building ... having its floor subgrade (below ground level) on all sides.” Article 2,
reprinted in
App. at 11. Each court considering the SFIP’s basement exclusion has found its language to be clear and unambiguous.
See Becton,
The parties disagree only as to whether the rear side of the lower level is below ground level. Aetna’s claims adjuster testified that shortly after the flood, the alley was even with the threshold, which is approximately four inches above the lower level floor. To enter the lower level from the alley, it was thus necessary to step down onto the lower level floor. The lower level floor at the rear side of the building, therefore, is below ground level and, hence, is a “basement” as that term is defined in the SFIP. The district court did not err in its conclusion.
In an effort to avoid this obvious policy exclusion, Linder makes two arguments: (1) the district court clearly erred when finding that the alley surface was above the lower level floor at the time of the flood, and (2) the district court erred in defining “ground level” as the level of the alley outside the garage doors at the time of the flood. We summarily dispose of Linder’s first argument. Linder points to testimony
*551
by its witnesses that the alley was lower than the lower level floor at the time of the flood. However, as explained above, Mr. Massof examined the building shortly after the flood and testified that the alley was even with the threshold, which is four inches above the lower level floor. Moreover, Linder’s expert found only two inches of crushed limestone adjacent to the garage doors, thus suggesting that the alley was at least two inches higher than the lower level floor before the flood. When there are two permissible views of the evidence, the factfinder’s choice between them cannot be clearly erroneous.
See Anderson v. City of Bessemer City,
We also reject Linder’s second argument. Linder contends that the term “ground level” is ambiguous and should be defined as the existing grade at the time Linder’s building was originally constructed, which supposedly was lower than the lower level floor. However, construing “ground level” in the policy to mean the ground level surrounding Linder’s building at some point in time other than the time of flooding seems unreasonable. Coverage under a flood insurance policy is predicated upon the occurrence of a flood. There cannot be a flood unless water rises above and flows over the existing ground level. It only makes sense, therefore, to equate “ground level” in the flood insurance policy as the ground level that was actually flooded, i.e., as the ground level at the time of the flood.
Moreover, Linder failed to present any admissible evidence suggesting that its proposed definition is a reasonable interpretation of the term “ground level.” Linder contends that its proposed definition is supported by an “Outline Guide to the Standard Flood Insurance Policy” which should have been considered as a party admission under Federal Rule of Evidence 801(d)(2)(C) and (D).
4
We believe that the district court appropriately exercised its discretion in excluding this document,
see Glass v. Philadelphia Elec. Co.,
The Outline Guide was drafted by Computer Sciences Corporation, a “fiscal agent” of the NFIP that “does not underwrite flood insurance policies” and does not have “ultimate authority over the issuance , of policies and the approval or denial of claims.”
Berger v. Pierce,
There are several flaws in Linder’s argument. Most notably, this court recently
*552
explained that “WYO companies are not general agents of the federal government.”
Van Holt v. Liberty Mut. Fire Ins. Co.,
In sum, FEMA, which “fixes the terms and conditions of the” SFIP,
Van Holt,
III.
For the foregoing reasons, we will affirm the order of the Magistrate Judge.
Notes
. The Honorable Francis X. Caiazza, United States Magistrate Judge for the Western District of Pennsylvania, who presided with the consent of the parties pursuant to 28 U.S.C. § 636(c).
. Unless noted otherwise, all citations to the Code of Federal Regulations are to those revised as of October 1, 1995.
. Linder based federal jurisdiction under,
inter alia,
42 U.S.C. § 4072. Although we originally questioned the existence of federal subject matter jurisdiction under this statute and asked the parties for supplemental briefs, this court’s recent decision in
Van Holt v. Liberty Mutual Fire Insurance Co.,
. In pertinent part, the Outline Guide provides the following:
2. basements*
a. a basement is any area of a building whose floor is below ground level on all sides
(1) ground level means the naturally existing grade at the time of original construction
(a) backfill against the structure after original construction does not create a basement
(5) if any portion of the floor in question is at or above ground level, the area is not a basement.
Outline Guide § VI(B)(2), reprinted in App. at 70-71.
. In one paragraph of the fact section of its opening brief, Linder also complains that the Magistrate Judge wrongfully excluded a government document setting forth a definition of "natural grade.”
See
Appellant’s Br. at 12-13. Because Linder failed to present any argument on this matter, we hold that Linder has waived any challenge to the exclusion of that document.
See Kost v. Kozakiewicz,
