Answer:
For this question, we need to look at the definitions of cashier's check and teller's check in the UCC, not the refined definitions in Reg CC. I believe that an interest check from a bank qualifies as either a cashier's or a teller's check (depending on whether it's drawn on the issuing bank or on another bank), and would be subject to the UCC section 3-411 provisions penalizing banks that stop payments on their official checks. That would also mean that section 3-312's provisions for lost, stolen or destroyed official checks would also apply.
First published on BankersOnline.com 3/20/06