The regulation requires a certified payroll for each week in which covered work is performed. Many agencies and primes still ask for a short statement that no work was performed, so the payroll numbering stays whole; ask yours what they want.
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This answer is one paragraph of a longer page, which has the context around it and the rest of the form or the week.
When certified payroll is dueSources, pulled on 2026-10-02
Every rule on this page comes from one of these, pulled from the government site on the date shown and written against that text. Open them; they are the authority, not us.
- 29 CFR 5.5, Davis-Bacon contract clauses (records, certified payrolls, Statement of Compliance)
eCFR. eCFR up to date as of 10/01/2026; last amended 90 FR 1859, Jan. 10, 2025. Pulled 2026-10-02.
Other quick answers
- Is certified payroll the same as the WH-347?
- What do I do if a certified payroll I already sent is wrong?
- Does the state want its own certified payroll too?
- What goes in the certified payroll number and header of the WH-347?
- Does the WH-347 need each worker's full Social Security number?
- How do I mark an apprentice on the WH-347?