The contracting officer shall charge interest on the daily unliquidated balance of all advance payments at the higher of the following rates:
The interest rate for advance payments shall be adjusted for changes in the prime rate or any change in rate established under D.C. Code § 28-3302(c) (1981).
Interest shall be computed at the end of each month on the daily unliquidated balance of advance payments at the applicable daily interest rate.
The contracting officer shall not allow interest charges for advance payments as reimbursable costs under cost-reimbursement contracts, whether the interest charge was incurred by the prime contractor or a subcontractor.
D.C. Mun. Regs. tit. 27, r. 27-3206