46 C.F.R. § 308.531
Endorsement of surety bond increasing or decreasing amount of coverage, Form MA-311.
Cite as 46 C.F.R. § 308.531 (2026)
The Standard Form of Endorsement which shall be used in increasing or decreasing the amount of a surety bond, Form MA-311, may be obtained from MARAD's underwriting agent or MARAD.