UKHO is also calling on mariners and inspectors to use extra due diligence to ensure products held are genuine, as some sellers of counterfeit products have been found to ‘mix’ genuine charts and
information with fake publications and vice versa.

The information contained within these counterfeit products has not been issued officially by, or on the authority of, any national Government, authorised Hydrographic Office, or relevant Government
institution. They therefore do not satisfy the carriage requirements of the International Convention on the Safety of Life at Sea (SOLAS), meaning that users could be in breach of their compliance
obligations.