CoC Revalidation
It is usually in the form of a hard cover booklet. In India, a CoC is issued by Director General Of Shipping, when a candidate/Officer(Engine or Deck) is found duly qualified after clearing exams conducted by Mercantile Marine Department, on behalf of Ministry of Shipping and Surface Transport, Government of India. It is issued under the provisions of Indian Merchant Shipping Act,1958 and International Convention on STCW for seafarers, 1978(as ammended).