48 C.F.R. § 234.004
(2) Contract type.
(i) In accordance with section 818 of the National Defense Authorization Act for Fiscal Year 2007 (Pub. L. 109-364), for major defense acquisition programs at Milestone B -
(B) The basis for the contract type selection shall be documented in the acquisition strategy. The documentation -
(1) Shall include an explanation of the level of program risk; and
(2) If program risk is determined to be high, shall outline the steps taken to reduce program risk and the reasons for proceeding with Milestone B approval despite the high level of program risk; and
(C) If a cost-reimbursement type contract is selected, the contract file shall include the Milestone Decision Authority's written determination that -
(1) The program is so complex and technically challenging that it would not be practicable to reduce program risk to a level that would permit the use of a fixed-price type contract; and
(2) The complexity and technical challenge of the program is not the result of a failure to meet the requirements of 10 U.S.C. 2366a.
(ii) In accordance with section 811 of the National Defense Authorization Act for Fiscal Year 2013 (Pub. L. 112-239), for contracts entered into on or after October 1, 2014, the contracting officer shall -
(A) Not use cost-reimbursement line items for the acquisition of production of major defense acquisition programs, unless USD(AT&L) submits to the congressional defense committees -
(1) A written certification that the particular cost-reimbursement line items are needed to provide a required capability in a timely and cost effective manner; and
(2) An explanation of the steps taken to ensure that cost-reimbursement line items are used only when to achieve the purposes of the exception; and
(3) The contracting officer shall include in solicitations for contracts for the technical maturation and risk reduction phase, engineering and manufacturing development phase or production phase of a weapon system, including embedded software -
[73 FR 4118, Jan. 24, 2008, as amended at 79 FR 4632, Jan. 29, 2014; 79 FR 23278, Apr. 28, 2014; 79 FR 58694, Sept. 30, 2014; 84 FR 58334, Oct. 31, 2019]