48 CFR 28.103-4: 28.103-4 Contract clause.

The contracting officer shall insert a clause substantially the same as the clause at 52.228-16, Performance and Payment Bonds—Other than Construction, in solicitations and contracts that contain a requirement for both payment and performance bonds. The contracting officer shall determine the amount of each bond for insertion in the clause. The amount shall be adequate to protect the interest of the Government. The contracting officer shall also set a period of time (normally 10 days) for return of executed bonds. Alternate I shall be used when only performance bonds are required.