Service Contract Act (SCA) Compliance Guide

The Service Contract Act requires contractors and subcontractors performing services on federal contracts exceeding $2,500 to pay service employees no less than the prevailing wage rates and fringe benefits found in the locality where the work is performed. The Department of Labor (DOL) issues wage determinations that specify minimum hourly wages and fringe benefit amounts for hundreds of occupational classifications in each geographic area.

The SCA applies to virtually all federal service contracts, with narrow exceptions for contracts covered by the Davis-Bacon Act (construction), contracts for manufacturing or supplying materials, contracts with individuals rather than companies, and certain professional/administrative employees exempt under 29 CFR 541. The law covers an estimated 2 million workers on federal service contracts.

For contractors, SCA compliance is not optional — it is a contract requirement incorporated through FAR 52.222-41 (Service Contract Labor Standards). Violations can result in contract termination, withholding of payments, contractor debarment, and liability for back wages. The contracting officer is responsible for ensuring the correct wage determination is included in the contract, but the contractor is responsible for compliance.

A wage determination (WD) is a document issued by the DOL's Wage and Hour Division that specifies the minimum hourly wage and fringe benefit rates for each labor classification covered by the SCA in a specific geographic area. Wage determinations are published on SAM.gov (formerly WDOL.gov) and are identified by a WD number and revision number.

There are two types of wage determinations. Area-wide (prevailing) wage determinations are issued based on DOL surveys of wages paid in a locality for specific occupations. They apply to new contracts and are updated periodically. Collective Bargaining Agreement (CBA)-based wage determinations incorporate the wages and benefits from an incumbent contractor's CBA, which successor contractors must match or exceed under Section 4(c) of the SCA.

The wage determination attached to your contract is the one in effect at the time of contract award (or the beginning of each option period for option-year exercises). The contracting officer must incorporate the applicable WD, and the contractor must pay at least the rates specified. You may pay more than the WD rates but never less. When pricing a proposal, always verify the current WD for the performance location and build in rate increases for option years based on DOL escalation trends. Check wage area data for geographic wage information.

In addition to prevailing wages, the SCA requires contractors to provide fringe benefits (or their cash equivalent) to covered employees. The most significant is the health and welfare (H&W) benefit, which is specified as a per-hour dollar amount in the wage determination. As of recent WDs, the H&W rate is approximately $4.60-$5.36 per hour worked (varying by WD revision).

The contractor satisfies the H&W requirement by either providing bona fide fringe benefits (health insurance, life insurance, disability insurance, pension contributions) that cost at least the WD-specified amount per hour, or by paying the difference in cash directly to the employee. Many contractors provide a health insurance plan and make up any shortfall between the plan cost and the WD requirement with a cash payment.

Other fringe benefits specified in wage determinations typically include vacation, holidays, and sick leave. The number of days varies by the employee's tenure. For example, a WD might require 2 weeks of vacation after 1 year of service, increasing to 3 weeks after 5 years. Holidays typically include 10 designated federal holidays. These leave benefits represent a real cost that must be factored into your pricing. Failing to provide required fringe benefits is the most common SCA violation after wage underpayment.

When a new contractor takes over a service contract from an incumbent, the successor contractor has specific obligations under the SCA. Section 4(c) of the Act requires that the successor contractor pay wages and fringe benefits at least equal to those contained in any collective bargaining agreement (CBA) in effect under the predecessor contract, for the first contract term.

Even without a CBA, the successor contractor must comply with the applicable wage determination, which may have been updated between the predecessor's award and the successor's award. The successor should request copies of the predecessor's wage determination and payroll records (available through the contracting officer) to understand the current wage baseline.

Practically, successor contractor obligations affect pricing significantly. If the incumbent has a CBA with wages above the area prevailing rate, the successor must match those CBA rates even if the successor's own employees typically earn less. This can make it difficult to underbid the incumbent on price. When evaluating a recompete opportunity, always determine whether a CBA is in effect and what rates it specifies. This information is critical to developing an accurate price proposal.

Wage determinations list hundreds of occupational classifications, but they do not cover every possible job title. When you need to employ workers in a classification not listed on the applicable WD, you must use the conformance process under 29 CFR 4.6(b) to establish an appropriate wage rate.

The process requires the contractor to: (1) identify the unlisted classification and describe the work performed, (2) propose a wage rate and fringe benefit rate based on similar listed classifications in the WD, (3) submit Standard Form 1444 (Request for Authorization of Additional Classification and Rate) to the contracting officer, and (4) obtain DOL approval through the contracting officer. Until formal approval, the contractor must pay the proposed conformed rate.

The conformed rate must bear a reasonable relationship to the rates for similar listed classifications. For example, if your WD lists “Computer Operator I” at $22.50/hour and “Computer Operator III” at $28.00/hour, a conformance request for “Computer Operator II” should propose a rate between those two. The DOL will reject conformance requests that propose unreasonably low rates. The conformance process typically takes 30-60 days, so plan ahead when you know your staffing plan will include non-standard classifications.

SCA violations carry significant consequences. The Department of Labor investigates complaints and conducts compliance audits. When violations are found, remedies include: