All states / Washington
Washington prevailing wage and certified payroll
Washington has its own prevailing-wage law (RCW 39.12 (prevailing wage); RCW 49.28.010 (8-hour day on public works)) on top of federal Davis-Bacon.
State law
RCW 39.12 (prevailing wage); RCW 49.28.010 (8-hour day on public works)
Applies to contracts
None (combined Intent/Affidavit form allowed at $5,000 or less)
Certified payroll
Statement of Intent to Pay Prevailing Wages and Affidavit of Wages Paid filed online with L&I; weekly certified payroll records filed with L&I online at least once a month on every public works project (RCW 39.12.120), kept 3 years.
Daily overtime
After 8 hours in a day, set on the job automatically.
In CertifyWage
WH-347 and Statement of Compliance for the state portal; the native upload file is being added.
Notes
Overtime after 8 hours a day (10 under a valid 4-10 agreement) and 40 a week (RCW 49.28.010); rates are per county, published twice a year.
Federal rules that apply in Washington too
Davis-Bacon
Federal and federally assisted construction contracts over $2,000 carry a wage determination from SAM.gov. Every laborer and mechanic is paid at least the listed base rate plus fringe for the classification of work actually performed.
Weekly certified payroll
The contractor and every subcontractor submit a certified payroll each week work is performed, with a signed Statement of Compliance. The U.S. Department of Labor’s optional form is the WH-347 (Rev. January 2025).
Overtime
On covered contracts over $100,000, the Contract Work Hours and Safety Standards Act requires time and a half of the basic rate for hours over 40 in a workweek. Fringe benefits are not multiplied.
Records
Payroll records are kept for at least three years after the work is completed and made available to the contracting agency and the Department of Labor on request.
The contracting agency’s instructions control when they differ from this summary. Get started or see every state.