Vault cash
Vault cash means United States currency and coin owned and booked as an asset by a depository institution that may, at any time, be used to satisfy claims of that depository institution's depositors and that meets the requirements of paragraph (k)(2)(i) or (k)(2)(ii) of this section.
Source
12 CFR § 204.2
Scoping language
For purposes of this part, the following definitions apply unless otherwise specified: