; (D) a detailed written plan to mitigate all of the conflicts of interest and potential conflicts of interest of the covered contractor, along with supporting documents; and (E) any other information or documentation about the covered contractor, the proposed subcontractors of the covered contractor, or entities related to the covered contractor that the Director or the designated agency ethics official for the applicable Federal agency may request. (3) Terms of contract or agreement (A) In general On and after the effective date of the ethics and conflicts of interest regulations, the Federal Government may not enter into (or renew) a covered contract, unless the covered contract includes enforceable terms and conditions to enforce the ethics and conflicts of interest regulations. (B) Existing contracts With respect to a covered contract entered into before the effective date of the ethics and conflicts of interest regulations, the head of the Federal agency that entered into the covered contract and the contracting officers of the Federal agency shall make efforts, to the maximum extent practicable and as part of the first amendment or modification to the contract after such effective date, to update the covered contract to include and enforce the ethics and conflicts of interest regulations. (4) Written certification The ethics and conflicts of interest regulations— (A) shall require a covered contractor to submit, under penalty of perjury, to the Director or the designated agency ethics official for the applicable Federal agency a written certification— (i) certifying that no conflicts of interest exists (and that individuals performing services under the covered contract have no personal conflicts of interest); or (ii) explaining in detail— (I) the extent to which the covered contractor can certify and describe the actions the covered contractor has taken and plans to take to mitigate any conflict of interest; and (II) the timeframe for implementation for the actions described in subclause (I)