Regional competitions have the option for choosing their tournament style, e.g. only double elimination, only round robin, or a combination of both. Each half begins with a toss-up question. Substitutions may be made only at the half. A toss-up question must be answered correctly in order for a team to be offered a bonus question. No team will have more than one opportunity to answer a toss-up question.
Questions are either multiple choice or short answer.
The only acceptable answer to a multiple choice question will be one of those read by the moderator. Timing begins after the moderator has completed reading the toss-up question. Once read in its entirety, a toss-up question will not be reread. Before answering, however, the team member must be verbally recognized by the moderator. If this happens, it is treated as a non-answer and the moderator will not indicate whether the answer was right or wrong.