As a type V PFD it must be worn to meet the requirements for 1 PFD for each occupant. My originally issued Mustang stated on the USCG label it was not to be used below 32 deg. Now the owners manual has a warning that in cold weather you make not get enough out of the CO2 cylinder to fully inflate and may need to finish manually inflating for full buoyancy. I have no idea how long that change has been in effect.
Can't tell you about the NY Reg. But for PA beginning in 2012, the following regulation was established:
- a person shall wear a Coast Guard approved personal flotation device (PFD or life jacket) during the cold weather months from November 1st through April 30th while underway or at anchor on boats less than 16 feet in length or any canoe or kayak.