The ISO Working Group that sets diving standards is meeting over the 10/11 March 2021. The standards for a 30 metre no-deco rebreather diver and 40/45 metre deco rebreather diver are nearing completion, and the group have started work on the next two standards, which are for a 60 metre and a 100 metre level. The RTC is represented at the meeting by Mark Caney and Paul Toomer.