On federal and federally assisted projects, the Davis-Bacon Act applies this to construction contracts above $2,000. Rates are published as wage determinations. Certified payrolls are submitted weekly to prove compliance. Many states, including California, have their own prevailing-wage laws (“Little Davis-Bacon” statutes) that apply to state-funded work, sometimes with stricter rules.
A wage determination lists a required base hourly rate plus a fringe benefit amount for each labor classification. The fringe can be paid as bona fide benefits or added to the cash wage. Workers must be classified by the work they actually perform, and time split across classifications has to be tracked. Apprentices count only within registered programs and approved ratios, which is a common audit pitfall. Misclassifying workers or underpaying fringes can mean back wages, penalties, and even debarment. The applicable wage determination is part of the bid documents. Nonlinear surfaces the prevailing-wage requirement during Spec Takeoff and can support the payroll and compliance reporting that keeps a project audit-ready.
