Opinion PER CURIAM.
Thе United States Postal Service appeals from the District Court’s award of summary judgment to the National Association of Letter Carriers (“NALC”) in an action to vacate an arbitration аward. The District Court sustained an arbitrator’s decision that language in the NALC’s collective bargaining agreement with the Postal Service subjecting the exercise of management rights to “applicable laws and regulations” required the Postal Service to pay a postal employee, in accordance with a Tennessee statute, for service on a local court jury. The legal issues raised in this appeal have, for the most part, been disposed of in this court’s recent opinion in
American Postal Workers Union v. United States Postal Service,
I. BACKGROUND
Danny Williams, a part-time letter carrier in the Jackson, Tennessee, Post Office, asked the Postаl Service to provide him with two days of paid leave to serve on jury duty in Huntington, Tennessee, in May of 1980. The Postal Service excused Williams from work but would not compensate him because its regulations only provide for paid “court leave” for part-time regular employees, not part-time flexible employees such as Williams. 1 Employee and Labor Relations Manual § 516.32, App. at 30. Williams filed a grievance, claiming that he was entitled to be paid for the two days he served as a juror pursuant to a Tennessee statute entitling all employeеs, including part-time workers, to their regular wages (less any compensation paid by the court) for serving on jury duty. Tenn.Code Ann. § 22-4-108 (1980). The arbitrator held that the Postal Service had violated the cоllective bargaining agreement by failing to pay Williams. App. at 41-46. His decision relied on Article III of the agreement, the management rights clause, which provides that the management’s аctions must be “consistent with applicable laws and regulations.” Id. at 46. The arbitrator found that the Tennessee statute was such a law: it was “applicable” to the Jackson Post Officе and to Williams, because it did not distinguish between “regular” and “flexible” employees. Id. at 45-46. The arbitrator therefore concluded that flexible employees at the Jackson Post Officе were entitled to paid court leave and ordered the Postal Service to compensate Williams for the two days. Id. at 46.
The Postal Service subsequently filed an action to vaсate the arbitrator’s award. The District Court awarded summary judgment upholding the arbitrator’s decision, finding that his decision “ ‘drew its essence’ from the collective bargaining agreement.
See
[
United Steеlworkers of America v.] Enterprise Wheel and Car Corp.,
II. ANALYSIS
We briefly reiterate the principles governing this court’s review of labor arbitration decisions, which are explained more fully in our recent decision in
American Postal Workers.
A court must uphold an arbitrator’s decision which “draws its essence from the collective bargaining agreement.”
Enterprise Wheel,
A. The Contract Interpretation
The Postal Service argues that the arbitrator’s decision did not draw its essence from the collective bargaining agreement but rather “relied on a state law whose terms were directly contrary to the express and unambiguous language of the contract.” Appellant’s Br. at 8. An award by an arbitrator does not, of course, draw its essence from the contract if it is “based on external legal sources, wholly without regard to the terms of the parties’ contract.”
American Postal Workers,
Here, however, the arbitrator did not rely directly on the Tеnnessee statute but rather on the language of the collective bargaining agreement requiring management decisions to be consistent with applicable law. In
American Postal Workers,
this court held that this vеry language in the Postal Service’s collective bargaining agreement could plausibly be read to incorporate the constitution as applicable law; the panеl accordingly upheld an arbitrator’s decision to exclude evidence from a discharge proceeding which the arbitrator concluded was inadmissible under the
Miranda
rule.
Neither does the contract provision limiting paid court leave to regular employees alter our conclusion that the arbitrator’s decision must be upheld. Thе arbitrator was aware of this contract provision; in fact, he quoted the entire provision and carefully pointed out that the applicable Tennessee statute made no similar distinction between regular and flexible employees. App. at 42-43, 45. In
American Postal Workers,
the Postal Service had similarly argued that the arbitrator should have relied upon a more specific provision of the contract. This court held that the arbitrator’s decision had to be upheld because the arbitrator had considered all of the pertinent contract provisions and his conclusion as to which provision controlled “was
itself
an interpretation of the contract which this court has no authority to disturb.”
B. The Public Policy Argument
The Postal Service argues that, even if the arbitrator’s award drew its essence from the contract, that decision must be overturned because it is contrary to a well-defined public policy of federal supremacy or preemption, under which the Postal Service’s operations are not to be subjected to a patchwork of conflicting state laws. The Postal Service relies on the so-called “public policy exception” derived from
W.R. Grace,
The arbitrator’s decision does not threaten to impair postal operations by subjecting *21 the Postal Service to the dictatеs of all state and local laws. It applies one Tennessee statute to a small class of employees at one post office; it has no prece-dential valuе as an interpretation of the management rights clause. Further, the Postal Service concedes that the public policy of federal supremacy does not preclude it from agreeing to subject itself to the Tennessee law, but claims that it never made any such agreement here. We have, however, upheld the arbitrator’s reading of the contract to embоdy an agreement by the Jackson Post Office to pay flexible employees for serving on jury duty in accordance with Tennessee law. Because the contract has been intеrpreted by the arbitrator to include an agreement by the Postal Service to comply with this particular statute as “applicable law,” any public policy against compelling the Postal Service tо obey such laws is inapposite. Thus, while we acknowledge the validity of the government’s concern over the public policy ramifications of allowing Postal Service operations to be impaired by conflicting state and local laws, we conclude that this policy is not implicated in the unique circumstances of this case.
III. CONCLUSION
We in no way endorse the arbitrator’s reading of the contract as the
correct
reading of that agreement: we might well have reversed a district court which had drawn such a legal conclusion. “We are not, however, сonsidering the decision of a district court on this legal issue, but rather the decision of an arbitrator. Our review of an arbitrator’s award is strictly limited to determining whether the award draws its essence from the contract.”
American Postal Workers,
Affirmed.
Notes
. Flexible employees, unlike regular employees, have no fixed work hours and are available to work flexible hours as assigned. Employee and Labor Relations Manual § 432.111(b), App. at 31.
