There is a current unclas message out, from June this year, stating that:
"THE QUOTE LINER, JACKET, BUOYANCY AID UNQUOTE, NSN LISTED BELOW IN
PARA 5, COMMONLY REFERRED TO AS THE FLOATER JACKET FLEECE, HAS BEEN
TESTED IN ACCORDANCE WITH REF B, CERTIFICATE OF COMPLIANCE AT REF C.
LINER, JACKET, BUOYANCY AID
CAN BE CONSIDERED A SECOND LAYER FOR THE PURPOSES OF ACTION DRESS AS
IDENTIFIED AT REF D SECTION
8.7.12 - DRESS REQUIREMENTS PARA 3"
It says later in the message that they are updating the dress regs to reflect it, and then the standard "this message will self-destruct in ...."
The link is here, but only works on the DWAN:
http://msg-server.halifax.mil.ca/messages/all/2023/jun/2023163000228.html