Data Sources
DOL Wage and Hour Division
The primary source for all Davis-Bacon and SCA wage determinations. The Wage and Hour Division publishes active WDs and historical revisions through the Wage Determinations OnLine (WDOL) system.
SAM.gov WDOL API
SAM.gov provides programmatic access to active wage determinations via the WDOL API. Free API keys available at sam.gov. Used for current WD data and revision tracking.
Source: SAM.gov API documentation
County Reference Data
County names, FIPS codes, and geographic references from the U.S. Census Bureau TIGER/Line dataset.
Source: U.S. Census Bureau
Data Currency
Wage determinations are updated when DOL publishes new revisions, typically annually. Always verify the current revision with the DOL WDOL system or your contracting agency before relying on rates for payroll or bidding purposes. This site is not the official source and is provided for reference only.