irc cert sample 160519A security date watermark will be printed across all valid Spinlock IRC certificates issued from 19 May 2016. This will make it quick and easy to identify a valid certificate (or copy certificate) issued by RORC or UNCL.

Current, valid certificates issued before 19 May 2016 are still valid and will not be reprinted.

Trial certificates will not include the watermark.

Regarding the new Cutter Rig definitions in the IRC Rule, when is a boat 'on a beat to windward'?

Rule 18.1(a), Mark-Room: When Rule 18 Applies
Rule 42.3(c), Propulsion: Exceptions
A boat is ‘on a beat to windward’ when the course she would sail to finish as soon as possible in the absence of all other boats is a close-hauled course or above.

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