The on-line registration is now back "on-line" as confirmed by the Organiser:
'Registration for the 2016 Mondial is online with a secure payment system in place. If paying registration fees with a credit card this can be done during the registration process. For those paying via wire/bank transfer, the organizer asks that the Head of Delegation request wire transfer details directly through email. The link for registration and additional details can be found at the event website:wpc2016.com.'