; (2) in subsection (a)(3), by striking No individual under 16 years of age and no incarcerated individual and inserting the following: (A) Incarcerated individuals No incarcerated individual ; (3) by adding at the end the following: (B) Children No individual under 16 years of age will be employed by the contractor, or any subcontractor or supplier of the contractor, in any activity at any tier under the contract, including any activity under a subcontract at any tier of the contract. No individual 16 or 17 years of age will be employed by the contractor, or any subcontractor or supplier of the contractor, in oppressive child labor, as defined under section 3(l) of the Fair Labor Standards Act of 1938 ( 29 U.S.C. 203(l) ), in any activity at any tier under the contract, including any activity under a subcontract at any tier of the contract. ; and (4) by adding at the end the following: (b) Children (1) Good faith defense for secondary liability A contractor shall not be in breach or violation of a representation or stipulation required under subsection (a)(3)(B) due to the actions of a subcontractor or supplier at any tier of the contract if the contractor— (A) entered into a contract with the prime subcontractor or supplier in a good faith reliance on a written assurance from the subcontractor or supplier that all subcontractors and suppliers at any tier of the contract would not, in any activity under the contract, including any activity under a subcontract at any tier of the contract, employ an individual under 16 years of age or employ an individual 16 or 17 years of age in oppressive child labor (as defined under section 3(l) of the Fair Labor Standards Act of 1938); (B) had no notice that a subcontractor or supplier would so employ an individual