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Wet Suit Guidelines
One of the most common questions USA Triathlon receives regarding racing rules involve if whether wet suits will be allowed at the race. To make it easier on you here is USAT's rules regarding wet suits.
Article 4.4: Each age group participant shall be permitted to wear a wet suit without penalty in any event sanctioned by USA Triathlon up to and including a water temperature of 78 degrees Fahrenheit.
When the water temperature is greater than 78 degrees, but less than 84 degrees Fahrenheit, age group participants may wear a wet suit at their own discretion, provided however that participants who wear a wet suit within this temperature range shall not be eligible for prizes or awards.
Any swimmer wearing a wet suit with a thickness measured in any part greater than 5 millimeters shall be disqualified.