Which pieces of equipment are allowed to be adjusted on the platform?

The correct answer is that only belts are allowed to be adjusted on the platform during a powerlifting competition. This is due to the specific regulations governing equipment adjustments to maintain fairness and consistency in competition.

Belts, which are used to provide support for the lower back, can be adjusted for comfort and fit to ensure the lifter is properly secured. This adjustment does not impact the lifter's performance in terms of technicality, as it is a personal choice to ensure safety.

In contrast, knee wraps and wrist wraps are considered to provide support and potentially enhance performance in specific lifts. Allowing adjustments to these items on the platform could lead to advantages that are not uniformly applicable across all participants, thus undermining the integrity of the competition. Powerlifting regulations strive to create a level playing field, and thus equipment that might enhance performance should remain fixed and not adjustable during the competition.

Understanding the specific allowances for equipment adjustment is crucial for referees, as it affects how they enforce the rules and maintain the spirit of fair play in powerlifting events.