The rule this week is 3.4k — Unauthorized Equipment.
The rule is only used rarely, maybe once or twice per decade, but its purpose is to prevent a participant from using equipment that might provide an unfair advantage, even if that piece of equipment is not specifically banned by the competitive rules.
It's not a rule most athletes will ever have to worry about, unless someone decides to invent a piece of equipment that no one has ever seen or thought of, and that might endanger another athlete.
This is the rule:
3.4k. Unauthorized Equipment.
No participant shall use any equipment which the head referee determines to be improper, including but not limited to equipment which might provide an unfair advantage or endanger other participants. Unless otherwise provided for in these rules, any violation of this section shall result in a variable time penalty.
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Have a question about the USA Triathlon Competitive Rules? Please contact Charlie Crawford.