Prevailing Wage Requirements in Washington: Government Contract Rules

Federal prevailing wage requirements are established under the Davis-Bacon Act, 42 U.S.C. § 3141 et seq., which applies to federal construction projects and federally funded projects. Under Davis-Bacon, contractors on covered federal projects must pay workers at the prevailing wage rates determined by the U.S. Department of Labor, which are typically higher than state minimum wages. The federal law covers laborers and mechanics employed on construction, alteration, or repair of public buildings or public works. The Department of Labor Office of Labor-Management Standards (OLMS) enforces Davis-Bacon requirements and investigates violations. Remedies include back wages at the prevailing rate, liquidated damages, debarment from future federal contracts, and civil penalties. The federal prevailing wage applies regardless of state law, and federal rates control when a project receives any federal funding.

The federal threshold applies to projects receiving federal funds, while states like Washington impose additional state-level prevailing wage requirements on publicly funded projects using state or local funds. Federal enforcement is stricter and penalties are more severe, including contractor debarment, which can end a company's ability to bid on federal work.

Washington State Revised Code § 39.04.320 establishes prevailing wage requirements for public works projects, which are significantly broader and more protective than federal Davis-Bacon requirements. Washington's law applies to any project for the construction, reconstruction, maintenance, or repair of any public building or public work when the total estimated cost is $10,000 or more, funded in whole or in part with public money from any source. This includes projects funded by the state, municipalities, counties, ports, school districts, and other public agencies.

Under Washington law, contractors and all subcontractors must pay all workers (laborers, mechanics, apprentices, and trailers) no less than the prevailing wage rate for the trade or occupation. The rates are determined and published by the Washington Department of Labor & Industries based on county-by-county surveys of union and prevailing wages. Rates are updated regularly and vary significantly by county and trade. Washington's prevailing wage law covers a broader range of workers than federal law and applies to smaller projects (state threshold is $10,000 vs. federal Davis-Bacon which applies to federally funded projects of any size).

Washington's law is considerably stronger than federal requirements in several ways: it applies to more project types (including maintenance and repair, not just new construction), covers more worker categories, and includes apprentices and workers in training. The state rates are often determined locally by county, providing more granular protections. Washington does not allow a federal Davis-Bacon rate to substitute for a lower state rate; the higher rate controls.

Employers covered include prime contractors, subcontractors, and materialmen on public works projects over the threshold. The Department of Labor & Industries enforces prevailing wage requirements, investigates complaints, and has authority to issue notices of violation, assess penalties, and require back wages with interest. Violations can result in payment of unpaid prevailing wages plus interest at the legal rate (currently 12% per annum in Washington), civil penalties up to the full amount of the underpayment, and potential debarment from future public works projects.

Washington's prevailing wage law contains several important exceptions and carve-outs that employers should understand. Work performed on private construction projects is not covered, regardless of project size; prevailing wage applies only to public works projects funded with public money. Projects funded entirely with private funds, even if they involve government-approved designs, do not trigger prevailing wage requirements.

The $10,000 threshold means that small public works projects under that amount are exempt from prevailing wage requirements, though they may still be subject to minimum wage laws. Certain public agencies have specific exemptions; for example, some utility maintenance work may be excluded if performed by employees of the utility company rather than contractors. Architects, engineers, and clerical workers may be exempt from prevailing wage if their work is not directly related to construction or repair of the public work itself.

Under Washington law, apprentices and workers in training are covered by prevailing wage but may be paid at a lower rate (typically 50-75% of the journeyman rate) if they are registered in an approved apprenticeship program and the contractor complies with all program requirements. Workers placed by temporary staffing agencies may still be entitled to prevailing wage if they are working on a covered public works project, though the agency or contractor status determines who is liable for payment.

Federal Davis-Bacon requirements do not override Washington's prevailing wage law; when both apply, the higher rate controls. Employers cannot satisfy Washington prevailing wage by paying the federal Davis-Bacon rate if Washington's rate is higher. Union contracts may establish prevailing wage rates, but those rates must meet or exceed the Department of Labor & Industries published rates. Material suppliers and equipment rentals are generally not subject to prevailing wage, though the workers who install or operate the materials are covered.

If you believe you have not been paid prevailing wage on a Washington public works project, follow these steps to assert your rights:

Step 1: Document Everything. Keep detailed records of all hours worked, the dates worked, the project location, the type of work performed, and the wages actually paid on each paycheck. Save copies of timesheets, pay stubs, cancelled checks, and any written communication about the project or pay rate. If you were told verbally what your wage would be, write down the date and the name of the person who told you. Take photographs of the project site and your work if possible. Document the equipment, materials, and job classification to establish what prevailing wage rate should have applied.

Step 2: Attempt Internal Resolution (if safe). If you are still employed on the project or by the contractor, you may request a written explanation of your pay rate and ask to see the prevailing wage rate determination for your county and trade. Send an email to the contractor or payroll manager asking for clarification of the prevailing wage rate applied and requesting written confirmation. Keep a copy of all communications. If the contractor is unresponsive or provides an incorrect rate, proceed to Step 3. Do not assume retaliation will occur—Washington law prohibits retaliation against workers who assert prevailing wage rights, though retaliation is a real risk; consider consulting an attorney before making internal complaints if retaliation seems likely.

Step 3: File a Complaint with the Washington Department of Labor & Industries. Contact the Prevailing Wage Program at the Department of Labor & Industries. You can file a complaint online, by mail, or by phone. The Department's phone number is 1-800-4-WASHOE (1-800-492-7463) or (360) 902-5636. The website is www.lni.wa.gov. You must file within three years of the date the prevailing wage became due (typically the date of the pay period in which you should have been paid). Provide your name, contact information, the project name and location, the contractor's name, the dates you worked, the job classification, the wages you were actually paid, and any evidence of the published prevailing wage rate for your county and trade. The Department will request payroll records, timesheets, and the prevailing wage rate determination from the contractor.

Step 4: Investigation and Resolution. Once the Department receives your complaint, it will assign an investigator who will contact you for additional information. The investigator will request documents from the contractor, including payroll records, timesheets, and payroll deductions. The investigation typically takes 30-90 days, though complex cases may take longer. If the Department finds a violation, it will issue a Notice of Violation and demand that the contractor pay all back wages, plus interest at 12% per annum from the date the wages became due. The contractor may request a hearing before the Board of Industrial Insurance Appeals. You do not need to be present at the hearing, but you may submit written statements or testimony. If the Department's determination is upheld, the contractor must pay within a specified period or face additional penalties and potential debarment from future public works projects.

Step 5: Consider Legal Representation. If the amount owed is substantial (generally $2,000 or more), if the contractor contests the Department's determination, or if you face retaliation, consult an employment attorney who specializes in wage and hour law. An attorney can ensure your rights are protected, help negotiate a settlement, represent you in a hearing, or file a civil lawsuit if necessary. Washington law allows workers to recover attorneys' fees and costs in prevailing wage cases, so the cost of representation may be offset by recovery of additional damages. Many employment attorneys offer free initial consultations.