The davis-bacon act of 1931 mandates that all federal employees on projects worth more than $20,000 be paid at a wage equal to the prevailing rate and at 1.5 times the rate for overtime.
The Davis-Bacon Act "requires that the minimum wage rates paid to people employed on federal public works projects worth more than $2000 be at lease equal to the prevailing rates and that overtime be paid at one and a half time this rate."
