General Procedural Guidance for Administration waivers for Offshore Support Vessels (OSVs) carrying limited amounts of hazardous and noxious liquid substances as per IMO Res. A.673(16) as amended.

Applicable to: Offshore support vessels

Effective Date: 31st January 2013

Superseded Circulars: None

Key Changes and Requirements

Offshore support vessels (OSVs) carrying limited quantities of hazardous and noxious liquid substances can apply for administration waivers.

Waived Requirements: Efficient stripping and underwater discharge arrangements (MARPOL 73/78, Annex II) for OSVs carrying noxious liquid substances or residues.
Conditions: Discharges to approved reception facilities, proper records maintained, and no segregation required for machinery spaces if cargo has a flashpoint exceeding 60°C.

Recognized Organizations (ROs) shall verify compliance and endorse waivers on the 'Certificate of Fitness' of the vessel.

Important Note

This guideline applies to OSVs carrying limited quantities of hazardous materials as identified in IMO Resolution A.673(16).

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