Maintenance of critical memory
Compiled text through Nov 15, 2021
Register checked through Jul 29, 2026
Later Register activity found — review the notice before relying on the compiled text.
Dates and status
- Compiling agency
- Executive Department
- Text status
- Westlaw Inline Boundary Correction
- Compiled text through
- Nov 15, 2021
- Register checked through
- July 29, 2026/Vol. XLVIII, Issue 30 (2026-07-29)
- Activity status
- Later Register activity found — review the notice before relying on the compiled text.
- Latest notice
- TAF-46-21-00009-P · Proposed rule · Nov 17, 2021
- Source snapshot
- Jun 6, 2026
(a)Critical memory storage shall be maintained by a methodology that enables errors to be identified. Such methodology may involve signatures, checksums, partial checksums, multiple copies, timestamps and/or effective use of validity codes. This section is not intended to preclude the use of alternate storage media types, such as hard disk drives, for the retention of critical data. Such alternate storage media still are expected to maintain critical data integrity in a manner consistent with the requirements in this section, as applicable to the specific storage technology implemented.
(b)Comprehensive checks of critical memory shall be made following game initiation but prior to display of game outcome to the player. It is recommended that critical memory be monitored continuously for corruption. The methodology shall detect failures with an extremely high level of accuracy.
(c)An unrecoverable corruption of critical memory shall result in an error. The memory error shall not be cleared automatically and shall result in a tilt condition, which facilitates the identification of the error and causes the gaming device to cease further function. The critical memory error shall also cause any communication external to the gaming device to cease immediately. An unrecoverable critical memory error shall require a full NV-memory-clear performed by a person authorized by the gaming facility’s approved system of internal controls.
(d)Non-volatile memory space that is not critical to gaming device security (e.g., video or sound) is not required to be validated.