---
kind: "section"
citation: "25 C.F.R. § 547.10"
title: "25"
number: "547.10"
heading: "What are the minimum standards for Class II gaming system critical events?"
url: "https://uscodex.org/cfr/25/547.10"
---

# §547.10. What are the minimum standards for Class II gaming system critical events?

- (a) **Fault events.**
  - (1) The following are fault events that must be capable of being recorded by the Class II gaming system:
  - (2) The occurrence of any event identified in [paragraph (a)(1)](#a-1) of this section must be recorded.
  - (3) Upon clearing any event identified in [paragraph (a)(1)](#a-1) of this section, the Class II gaming system must:
    - (i) Record that the fault condition has been cleared;
    - (ii) Ensure the integrity of all related accounting data; and
    - (iii) **In the case of a malfunction, return a player's purchase or wager according to the rules of the game.**
- (b) **Door open/close events.**
  - (1) In addition to the requirements of [paragraph (a)(1)](#a-1) of this section, the Class II gaming system must perform the following for any component affected by any sensored door open event:
    - (i) Indicate that the state of a sensored door changes from closed to open or opened to closed;
    - (ii) Disable all financial instrument acceptance, unless a test mode is entered;
    - (iii) Disable game play on the affected player interface;
    - (iv) Disable player inputs on the affected player interface, unless test mode is entered; and
    - (v) **Disable all financial instrument disbursement, unless a test mode is entered.**
  - (2) The Class II gaming system may return the component to a ready to play state when all sensored doors are closed.
- (c) **Non-fault events.** The following non-fault events are to be acted upon as described below, if applicable:

## Notes

### Authority

Authority: 25 U.S.C. 2706(b).

### Source

Source: 77 FR 58479, Sept. 21, 2012, unless otherwise noted.