Hart v. United States — rules government contractor was properly paid Sunday premium based on a 25% rate, not a larger budget estimate

Case
Sharon Y. Hart v. The United States
Court
U.S. Court of Federal Claims
Judge
Molly R. Silfen (Joseph R. Biden Jr., 2023)
Date Decided
July 27, 2026
Docket No.
25-1376
Topics
Government Contracts, Contract Interpretation, Pay Disputes, Federal Acquisition Regulation (FAR)
Source
Read the full opinion

Background

Dr. Sharon Hart, serving as a senior advisor for the U.S. Agency for International Development (USAID) in Jordan under a personal services contract, filed a lawsuit against the United States, alleging she was underpaid for Sunday work. The dispute centered on the correct rate for her “Sunday differential pay.” Dr. Hart’s contract, which stipulated a Sunday-through-Thursday workweek, contained a “Contract Estimation” table with a line item for “Sunday Diff.” showing “25%” and a corresponding dollar amount of “$39,987.50” for the year.

Dr. Hart argued that this $39,987.50 figure represented a guaranteed compensation amount for a full year of Sunday work. Based on this, she calculated a differential hourly rate of $96.12. Since she had worked 256 Sunday hours, she claimed she was entitled to $24,606.72 in Sunday pay and, after subtracting the amount USAID had already paid her, sought an additional $19,696.48.

The government countered that the $39,987.50 was merely a budget estimate and a maximum cost ceiling, not a promised rate of pay. It asserted that the correct rate, as specified by the contract’s “25%” entry and incorporated federal regulations (AIDAR and FAR), was 25% of her basic hourly pay. It was undisputed that USAID had already paid Dr. Hart $4,910.24, the amount calculated using this 25% rate. Both parties filed cross-motions for judgment on the pleadings.

The Court’s Holding

The U.S. Court of Federal Claims granted judgment on the pleadings in favor of the government and dismissed Dr. Hart’s complaint. The court found that the plain language of the contract unambiguously established that the dollar amount for Sunday differential pay was a budget estimate, not a guaranteed rate of compensation. The court pointed to the table’s title, “Contract Estimation,” and other contractual language describing the total contract value as the “Maximum U.S. Dollar Obligation” as clear evidence that the figures were ceilings, not fixed payment amounts.

The court reasoned that interpreting the budget figure as a fixed obligation would contradict other contract provisions stating that the contractor would be paid for “costs actually incurred.” Furthermore, the court identified three independent sources confirming the rate was 25% of basic pay: the “25%” figure listed in the contract’s budget table itself; a non-binding conditional selection letter sent to Dr. Hart; and the contract’s incorporation of the Agency for International Development Acquisition Regulation (AIDAR) and Federal Acquisition Regulation (FAR), which tie contractor pay to the rates for direct-hire employees, who receive a 25% premium for Sunday work.

Because USAID had already paid Dr. Hart at the contractually required rate of 25% of her basic pay for all Sunday hours worked, the court concluded that no breach of contract had occurred. Therefore, her claim for additional payment was denied.

Key Takeaways

  • Budget figures in government contracts labeled as “estimates” or part of a “Contract Estimation” table are generally treated as cost ceilings, not guaranteed payment amounts.
  • Courts interpret contracts as a whole, seeking to give reasonable meaning to all provisions and preferring interpretations that do not render some terms meaningless.
  • The compensation for government personal services contractors is often governed by incorporated regulations, such as the FAR and agency-specific rules like AIDAR, which can align contractor pay with that of direct-hire federal employees.
  • A contractor’s personal interpretation of a contract term does not create ambiguity if the plain language of the document and incorporated regulations point to a different, reasonable conclusion.

Why It Matters

This decision reinforces a core principle of government contracting: budget estimates are not promises to pay. The court’s ruling clarifies for contractors that line items in a contract’s budget estimate serve as a cap on the government’s financial liability, not as a guaranteed compensation floor. Contractors must look to the specific payment clauses of the contract and any incorporated regulations to determine their actual rate of pay, rather than relying on high-level budget figures.

The case serves as a crucial reminder for contractors to perform thorough due diligence on all contract documents, including regulations that are incorporated by reference. While Dr. Hart’s interpretation was based on a specific dollar figure in her contract, it was ultimately defeated by the context provided by the rest of the agreement and the established hierarchy of federal contracting rules. This underscores the importance of seeking clarification on any potentially confusing or ambiguous terms before signing a contract with the government.

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