It shall be a condition of the receipt of any grant under this section that the group or individual of exceptional talent or the State, State agency, or entity receiving such grant furnish adequate assurances to the Secretary of Labor that all laborers and mechanics employed by contractors or subcontractors on construction projects assisted under this section shall be paid wages at rates not less than those prevailing on similar construction in the locality, as determined by the Secretary of Labor in accordance with sections 
3141–3144, 
3146, and 
3147 of title 
40. The Secretary of Labor shall have, with respect to the labor standards specified in this subsection, the authority and functions set forth in Reorganization Plan Numbered 14 of 1950 and section 
3145 of title 
40.