AREA OF RESTRICTED ACCESS. No large vessels (those 500 gross tons or greater, or 40 metres length overall or greater) shall enter into, or remain within, the Chatham Islands Area of Restricted Access without the prior approval of the Harbourmaster (a fee may be charged). This restriction includes passage between Chatham Island and Pitt Island by transiting large vessels. See New Zealand Annual Notices to Mariners 10 for details.