H.C.

Аббревиатура встречается в следующем контексте:

(certificate of insurance)

This is to certify that in accordance with your instructions insurance has been effected wth certain underwriters at Lloyd's London through XXX under contract YYY.

Per approved steamer/s (or H.C. subject to classificatin clause 354 of 1.1.01)
M.V.: MS Discoverer
From: Israel Warehouse
To: Russia Port
etc.

Заранее спасибо