| 8a) | Guidelines for a competition to become official according to the WCA:
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| 8b) | An open competition is open to anyone. |
| 8c) | A closed competition may be open (courtesy of WCA Board) to:
No other distinctions are allowed to declare a competition closed. |
| 8d) | Competitions may have time limits per round of an event, to make sure that the time schedule can be followed. |
| 8e) | If during a round a competitor does not solve within the time limit, then his solve may (courtesy of main judge) be stopped and disqualified by the judge. The main judge decides whether the competitor may continue the round, for example if the time was exceeded because of a puzzle defect. |
| 8f) | If the WCA regulations are not followed correctly during a competition, then the WCA Board may declare the competition, specific events or specific solves unofficial. |
