sambolino44
Contributor
They asked to see it in Costa Rica (Costa Rica Divers in Brasalito), and Corsica (Club de Plongee Barakouda, Bonifacio). In the US I've been asked to show it after having my regs serviced, because I told them it had been a long time since my last dive. They encouraged me to take a refresher course, which I did. Also, my LDS asked to see it before my first air fill at that shop.