HYDROGRAPHIC NOTE (MH 501) FORM Form Date Ref. No Name of ship Sender Address IMO Number/Registryor address of sender General locality Subject Approx latitude longitude *for multiple locationseparate with semicolon (;) Chart Affected Enc Affected Latest Notices to Mariners held Affected Publication Details Observer/Reporter Contact No Email Attachments 1 Attachments 2 Attachments 3 Attachments 4 Attachments 5 Submit