What are types of Survey of carried out as per MARPOL?

Initial survey:  Before the ship put in service or before the certificate issued for the first time, which shall include a complete survey of its structure, equipment, systems, fittings, arrangements and material.

Renewal survey : At intervals specified by the administration but not exceeding 5 years. It ensure that the structure, equipment, systems, fittings , arrangements and materials fully comply with the applicable requirements of this Annex.

Intermediate survey : Within 3 months before or after the second anniversary date or within 3 months before or after the third anniversary date. It ensure that the equipment and associated pump and piping system, including oil discharge monitoring and control systems, crude oil washing systems, oily water separating equipment and oil filtering system fully comply with the applicable requirements of this annex and are in good working orden.

Annual survey : Within 3 months before or after each anniversary date of the certificate, including a general inspection of the structure, equipment, systems, fittings, arrangements and materials.

Additional survey : Whenever any important repair and renewal made.