(a) Contract clause. The contractor, as a condition of payment, shall abide by the terms of the applicable Executive Order minimum wage contract clause referred to in Sec. 10.11(a).
(b) The contractor and any subcontractors shall include in any covered subcontracts the Executive Order minimum wage contract clause referred to in Sec. 10.11(a) and shall require, as a condition of payment, that the subcontractor include the minimum wage contract clause in any lower-tier subcontracts. The prime contractor and any upper-tier contractor shall be responsible for the compliance by any subcontractor or lower-tier subcontractor with the Executive Order minimum wage requirements, whether or not the contract clause was included in the subcontract.