13 GCA § 3411
Certification of a Check
View official PDF ↗(1)Certification of a check is acceptance. Where a holder procures certification the drawer and all prior indorsers are discharged.
(2)Unless otherwise agreed a bank has no obligation to certify a check.
(3)A bank may certify a check before returning it for lack of proper indorsement. If it does so the drawer is discharged.
Reconstructed from the Guam Code Annotated. For the authoritative version, see the official PDF.