New Zealand Gazette – 2004 – No. 79

Page 1942

✨ Gaming Machine Standards



1942 NEW ZEALAND GAZETTE, No. 79 29 JUNE 2004

Configuration of Multi-Game Gaming Machines

1.26.10 All games resident in a gaming machine’s memory shall be certified by the designated testing body prior to approval. Exceptions to this rule may be granted but only on a case by case basis.

1.26.11 If it is possible to select between multiple games that are resident in a gaming machine’s memory, this selection shall take place in Setup Mode by a technician on the gaming machine prior to being enrolled by a central system, or by a configuration command from a central system. Configuration by both methods will only be permitted if certified by the designated testing body. Where a certification is not in place, the gaming machine must reject the unapproved method. If there is no CMCS, the selection may either take place in the Setup Mode by a technician or as an Audit Mode function.

1.27 Random Number Generator and Symbol Selection

Game Result Determination

1.27.1 Game software must generate random symbols (or reel stop positions) from a Random Number Generator (RNG) algorithm and mapping algorithm.

1.27.2 The game software must not determine the outcome of a play (critical to the game result) or gamble until after all player options pertaining to the play or gamble have been made.

Fundamental RNG Requirement

1.27.3 The fundamental requirement is that the use of an RNG results in the selection of game symbols or production of game outcomes or selection of "mystery" jackpot values which are able to be proven to:

a) be statistically independent;

b) be uniformly distributed over their range;

c) pass various recognised statistical tests; and

d) be unpredictable.

1.27.4 RNG tests that may be applied include:

a) chi-square test;

b) equi-distribution (frequency) test;

c) gap test;

d) poker test;

e) coupon collector’s test;

f) permutation test;

g) run test (Patterns of occurrences should not be recurrent);

h) spectral test;

i) serial correlation test potency and degree of serial correlation (outcomes should be independent from the previous game); and

j) test on subsequences.

Choice of Algorithm

1.27.5 The choice of algorithm is at the discretion of the supplier of equipment, however, it must comply with the requirements of this document.

Background RNG Activity Requirement

1.27.6 The RNG must be cycled continuously between plays.

RNG Seeding

1.27.7 The method of seed-set generation must be approved.

1.27.8 The method of seed generation must ensure that:



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Online Sources for this page:

VUW Te Waharoa — PDF NZ Gazette 2004, No 79


Gazette.govt.nz — PDF NZ Gazette 2004, No 79




✨ LLM interpretation of page content

⚖️ Schedule 3 - Appendix D: Australian/New Zealand Gaming Machine National Standard (continued from previous page)

⚖️ Justice & Law Enforcement
Gaming Machine, National Standard, Multi-Game Configuration, Random Number Generator, Game Result Determination