Best of luck :)

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Note added at 10 mins (2009-07-22 19:31:38 GMT)
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Technically, one should say 'minimum under-keel clearance', known as 'UKC':

33 CFR 157.455 - Minimum under-keel clearance. - Code of Federal Regulations - Title 33: Navigation and Navigable Waters - TITLE 33 - NAVIGATION AND ...
cfr.vlex.com/vid/157-455-minimum-under-keel-clearance-19764053

Hawaii Ocean Safety Team: S.O.P.: Minimum Under-Keel Clearance in ...
Minimum Under-Keel Clearance in Commercial Ports Approved October 30, 1997. Issue. Presently, deepdraft vessels arriving and departing Hawaiian commercial ...
hosthawaii.org/sop0497.html - Cached - Similar

Port of Savannah Industry Guidelines for Minimum Under-Keel Clearances
File Format: PDF/Adobe Acrobat - View
Minimum Under-Keel Clearances. PRECEPT. This minimum under-keel clearance guideline was developed and implemented in conjunction ...
www.savannahmaritime.com/.../Savannah Under Keel Clearance ...

Draft Guidelines for mariners on determination (estimation) of ...
File Format: PDF/Adobe Acrobat - View
8 Oct 2008 ... Minimum safe under keel clearance should never be less than ... recommended minimum under-keel clearance, the master must ensure that, ...
meeting.helcom.fi/c/document_library/get_file?folderId...pdf - Similar

Under Keel Clearance | Maritime Information
Under Keel Clearance - the distance between the deepest point of the vessel's ... The OOW shall check prior to arriving at positions where minimum UKC is ...
maritimeknowledge.info/under-keel-clearance - Cached - Similar

etc...