48 CFR 45.303 - Use of Government property on independent research and development programs.
The contracting officer may authorize a contractor to use the property on an independent research and development (IR&D) program, if -
(a) Such use will not conflict with the primary use of the property or enable the contractor to retain property that could otherwise be released;
(b) The contractor agrees not to claim reimbursement against any Government contract for the rental value of the property; and
(c) A rental charge for the portion of the contractor's IR&D program cost allocated to commercial work is deducted from the claim for reimbursement of any agreed-upon Government share of the contractor's IR&D costs.