When towing someone with a PWC, one of the requirements is?A red skiing flag of at least 7 x 7 inches in size must be displayed.An observer or wide-angle rearview mirror is required.A continuously flashing yellow light must be displayed.A person may not be towed faster than 20 miles per hour.

When towing someone with a Personal Watercraft (PWC), there are several requirements that must be met for safety reasons.

1. A red skiing flag of at least 7 x 7 inches in size must be displayed: This is to alert other watercraft in the area that there is a skier in the water. This flag should be clearly visible to all other watercraft.

2. An observer or wide-angle rearview mirror is required: This is to ensure that the driver of the PWC can keep an eye on the person being towed at all times. If an observer is used, they must be a responsible person of suitable age and discretion.

3. A continuously flashing yellow light must be displayed: This is not typically a requirement for towing with a PWC. The light is usually used on larger vessels or in specific situations to indicate restricted maneuverability or other conditions.

4. A person may not be towed faster than 20 miles per hour: This is a general guideline to ensure the safety of the person being towed. The actual speed may vary depending on local regulations, the skill level of the person being towed, and the conditions on the water.

Please note that these are general guidelines and the actual requirements may vary depending on local laws and regulations. Always check with local authorities or a boating safety course to ensure you are following all necessary safety precautions.