What deduction is applied if a gymnast performs a routine on an unauthorized springboard surface?

If a gymnast performs a routine on an unauthorized springboard surface, a deduction of 0.30 is applied. This specific deduction is set to discourage the use of equipment that does not meet the sanctioned standards, ensuring that all gymnasts compete under the same conditions to maintain fairness within the competition. The unauthorized surface can affect the gymnast's performance and safety, so the deduction reflects the significance of adhering to the required equipment regulations. This penalty emphasizes the importance of proper adherence to the rules while also allowing some level of flexibility in the judging process without imposing the harsher penalties reserved for more severe violations.