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In view of different international conventions, various types of surveys are required to be conducted, and relevant international convention certificates and reports, issued. They can be divided into five categories, which are outlined as follows:

A. For surveys carried out in accordance with the International Load Line Convention 1966, there are Renewal Survey and Annual Survey.
1. The Renewal Survey is carried out every 5 years. An interim certificate valid for 5 months may be issued by a site surveyor upon satisfactory completion of a survey. We will reissue a full-term certificate with the validity not exceeding 5 years.
2. The annual survey is carried out every year within 3 months either way of each anniversary date.

B. For surveys carried out in accordance with the International Convention for the Safety of Life at Sea 1974 and the provisions of relevant amendments, the following four certificates shall be issued to ships as the SOLAS Convention covers a wider scope:
(1) Cargo Ship Safety Construction Certificate
(2) Cargo Ship Safety Equipment Certificate
(3) Cargo Ship Safety Radio Certificate
(4) Document of Compliance/ Safety Management Certificate (DOC/SMC) : This will be detailed in ISM.

1. As the SOLAS Convention has been repeatedly amended, the mandatory codes amended include the following:
(1) FSS Code (Chapter II-2)
(2) LSA Code (Chapter III)
(3) ISM Code (Chapter IX)
(4) GRAIN Code (Chapter VI)
(5) IBC Code, IGC Code, INF Code (Chapter VII)
(6) HSC Code (Chapter X)

2. As different rules and regulations apply to different ship types, relevant
certificates are required to be provided, eg:
(1) The International Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulk ( IBC Code )or the Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulk (BCH Code) shall apply to chemical tankers, and an IBC Certificate,or a BCH Certificate, shall be issued.
(2) The International Code for the Construction and Equipment of Ships carrying Liquefied Gases in Bulk(IGC Code) shall apply to gas carriers, and an IGC Certificate shall be issued.

3. For surveys carried out in accordance with the provisions of the International Regulations for Preventing Collisions at Sea, 1972 and amendments, they are included in the requirements of Cargo Safety Equipment; therefore, relevant certificates will not be issued.
 
4. Relevant certificates and survey intervals are as follows:
Name of Certificate Survey Interval
Cargo Ship Safety Construction Certificate (SC)
Renewal Survey: Carried out every 5 years.
Intermediate Survey: Carried out within 3 months before or after the second or third anniversary date in replacement of one required annual survey.
Annual Survey: Carried out within 3 months either way of each anniversary date.
External Examination of Ship Bottom: At least two such surveys shall be carried out within a 5-year period. The maximum interval between two such surveys shall not exceed 36 months.
Cargo Ship Safety Equipment Certificate (SE)
Renewal Survey: Ditto
Intermediate Survey: Carried out within 3 months before or after the second or third anniversary date in replacement of one required annual survey.
Annual Survey: Ditto
Cargo Ship Safety Radio Certificate (SR)
Renewal Survey: Ditto
Intermediate Survey: Carried out within 3 months either way of the anniversary date.
Certificate of Fitness for the Carriage of Dangerous Chemicals in Bulk (CM)
Renewal Survey: Ditto
Intermediate Survey: Carried out within 3 months before or after the second or third anniversary date in replacement of one required annual survey.
Annual Survey: Ditto
Certificate of Fitness for the Carriage of Liquefied Gases in Bulk
Renewal Survey: Ditto
Intermediate Survey: Carried out within 3 months before or after the second or third anniversary date in replacement of one required annual survey.
Annual Survey: Ditto
 
C. For surveys carried out in accordance with the International Convention for the Prevention of Pollution from Ships 1973/1978 (MARPOL 73/78) and amendments, a total of six annexes to this convention, which involve the prevention of pollution by oil, noxious liquid substances, pollution by harmful substances carried by sea in package form, sewage, garbage and air, have become effective successively.
 
The Oil Pollution Prevention (Annex 1) covers a wider scope at present. If all the requirements are complied with, the certificates and survey intervals are detailed as follows:
Name of Certificate Survey Interval
International Oil Pollution Prevention Certificate (IOPP)
Renewal Survey: Carried out every 5 years.
Intermediate Survey: Carried out within 3 months before or after the second or third anniversary date in replacement of one required annual survey.
Annual Survey: Carried out within 3 months either way of each anniversary date.
 
 
 
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