Final answer:
When waterskiing on US waters, a waterskier is required to wear a PFD, display a ski flag, have a spotter, and follow state/local regulations.
Step-by-step explanation:
When waterskiing on US waters, there are several requirements that a waterskier must follow:
- The skier must wear a Coast Guard-approved personal flotation device (PFD) at all times.
- A ski flag must be displayed whenever a skier is in the water or being towed.
- The skier must have a spotter onboard the boat to keep an eye on them and communicate with the driver.
- The boat towing the skier must have a rearview mirror or an observer to monitor the skier.
- It is also important to follow any specific state or local regulations regarding waterskiing.