Definitions for "Official Check"
Negotiable instrument of guaranteed funds purchased from a national bank. It can be cashed anywhere and if deposited in another bank, funds are available immediately
A check that is (1) drawn on a credit union, (2) signed by a credit union officer or authorized signer on behalf of the credit union as a drawer, (3) a direct obligation of the credit union, and (4) provided to a member of the credit union or obtained from the credit union for remittance purposes.
a guaranteed funds check