to a migrant agricultural worker or seasonal agricultural worker of a labor contractor, or any labor subcontractors under a labor contractor, in any case where such labor contractor or labor subcontractor is responsible for the rights and protections of this Act with respect to the migrant agricultural worker or seasonal agricultural worker. . (f) Davis-Bacon Act Section 3144b of title 40, United States Code, as amended by section 205(f)(1), is further amended by adding at the end the following: (f) Contractors' liability for labor subcontractors An employer who is a contractor subject to the requirements of this subchapter shall also be responsible for the rights and protections of this subchapter with regard to an employee of any labor subcontractor of the contractor, or any labor subcontractors under a labor subcontractor, in any case where— (1) the employee is performing work under a contract to which this subchapter applies