Section 1204.804-570 - Supporting closeout documents(a) When applicable and prior to contract closeout, the contracting officer shall obtain the listed DOT and Department of Defense (DOD) forms (see paragraphs (a)(1) through (4) of this section) from the contractor to facilitate contract closeout. See part 1253 for links to forms. (1) Form DOT F 4220.4, Contractor's Release, see FAR 52.216-7;(2) Form DOT F 4220.45, Contractor's Assignment of Refunds, Rebates, Credits and Other Amounts, see FAR 52.216-7;(3) Form DOT F 4220.46, Cumulative Claim and Reconciliation Statement, see FAR 4.804-5(a)(13); and(4) Department of Defense (DD) Form 882, Report of Inventions and Subcontracts, see FAR 52.227-14.(b) The forms listed in paragraph (a) of this section are used primarily for the closeout of cost-reimbursement, time-and-materials, and labor-hour contracts. However, the forms may also be used for closeout of other contract types or when necessary to protect the Government's interest.