Bob, there shouldn't be any problem finding out if a law has been enacted as it is on the books. The form and degree of enforcement is not known at this point however.
More at: http://fksa.org/showthread.php?t=12224
I wear a NP High Hook Harness (not USCG certified), have done for years. It is well suited to the restrictions and demands of kiting in my experience unlike a lot of USCG approved PFDs. I will see how I fair with that if and when I have an encounter with the authorities.