Because banks are subject to both state and federal regulations, procedures can vary greatly from bank to bank and state to state. Some states have been known to automatically freeze joint bank accounts when one of the joint owners dies. To avoid problems, contact your bank directly, to determine the amount of money accessible and learn the procedures for releasing these funds, and to establish a new account for funds received after the death. If after six months you want to take the deceased's name off the account, the bank will want to have a Certified Copy of the Death Certificate. If the safety deposit box is in the sole ownership of the deceased, the bank will require a Certified Copy of the Death Certificate and Letters of Administration to gain access to the contents. On co-owned safety deposit boxes, the rules vary from state to state. Call your attorney or bank for their requirements.