STATUTORY CERTIFICATE AND REVALIDATION

 If a statutory certificate has just expired and the vessel is in a port having inadequate survey facility, then the Class or the concerned authority should be notified immediately upon which the Class or concerned Authority will extend the period of validity of the certificate.

Extension of Certificates:
Extension of certificates in India - In Indian waters
Whenever a vessel is in port in India with an expired statutory certificate and it is not possible to carry out the survey due to non-availability of necessary repair facilities or other causes, the Principal Officer concerned may permit the ship to proceed from that port to another port of survey in India. Such extensions shall not exceed a period of one month.
Extension of certificates abroad -
Whenever an Indian ship arrives at a port abroad and her certificate is likely to expire, the Master shall intimate the nearest Indian Consular officer authorized to deal with extension of certificates telegraphically giving him details of further voyage. The Consular Officer on receipt of this information shall extend the certificate for an adequate period to enable the vessel to return to a port in India but in no case shall such period exceed five months. Where a vessel is not likely to return to India, the Consular Officer may either request the local administration at that port for a survey and issue of an appropriate certificate on behalf of the Government of India or extend the certificate to enable the vessel to reach her next port of call where such survey facilities are available.
All statutory certificates for cargo ships, tankers, containers, refrigerated vessels, will be valid for a maximum period of 5 years. For passenger ships validity will be 1 year.
Ships have to follow Harmonized system of surveys and certification (HSSC).
Every six-month: De-ratting certificate. May be extended by one month. Under PSC, ships to be considered for priority inspection.
Every Year: Annual surveys / Endorsements of all statutory certificates and class certificates. Window period is ( ⁺ 3 months).
Every 30 months: Intermediate survey. Window period is ( ⁺ 6 months).

Every five years: Certificates to be renewed