48 CFR § 28.103-3
Payment bonds
November 17, 2020
(a) A payment bond is required only when a performance bond is required, and if the use of payment bond is in the Government's interest.
(b) When a contract price is increased, the Government may require additional bond protection in an amount adequate to protect suppliers of labor and material.
[48 FR 42286, Sept. 19, 1983, as amended at 61 FR 39213, July 26, 1996]