I honestly don't know Jim. By the letter of the law, it's probably illegal, but I don't think it's the legislative intent. I think the intent is just to keep folks a safe distance away from CO sources.
There is a thread over at Tigeowners.com and the following picture was sent to the Parks and Rec's department.
The person isn't standing, it's crouching and the Park's and Rec's point out that it's just being UPRIGHT that's required. UPRIGHT, I would guess is oppossed to PRONE. Their response:
The sports of wake surfing and wake skating have not been prohibited in Utah. Below is the text of the rule. As long as the person is in an upright position while being towed within 20 feet of a boat--there are no restrictions.
R651-224-2. Unlawful methods of towing
No person shall operate a motorboat or have the engine of a motorboat run idle while a person is occupying or holding onto the swim platform, swim deck, swim step or swim ladder of the motorboat or while a person is being towed in a non-standing position within 20 feet of the vessel. These restrictions do not apply when a person is occupying the swim platform, swim deck, swim step or swim ladder while assisting with the docking or departure of the motorboat, while exiting or entering the motorboat, or when a motorboat is engaged in law enforcement activity.
In your photo it does appear the man sitting on the stern would be in violation of our "riding on unauthorized portions" of the boat law.
73-18-15.1(12) (a) Except as provided in Subsection (12)(b), the operator of a motorboat that is less than 65 feet in length may not exceed a wakeless speed while any person is riding upon the bow decking, gunwales, transom, seatbacks, or motor cover.
Please let me know if you have any questions,
Dave Harris
Boating Program Coordinator
Utah State Parks and Recreation