Which of the following is NOT required on a paddleboard?

The requirement for equipment on a paddleboard primarily pertains to safety and legal regulations governing watercraft. A fishing rod is not mandated as essential gear for paddleboarding; it is an optional piece of equipment that individuals may choose to bring if they plan to fish while on the water. In contrast, a lifejacket is necessary for safety, ensuring the paddler is equipped for emergencies. A sound-producing device is typically required to signal for help if needed, particularly in areas with other vessels. Additionally, having a light at night is crucial for visibility and safety in low-light conditions. Thus, while participants may enjoy paddling with a fishing rod, it isn't a requirement, making it the correct answer to the question.