IACS issued a new UI M54 which was adopted in Feb 2024 has into effect from 01st July 2025 which is applicable for vessel contracted for contruction on or after 01st July 2025.
The document outlines requirements for the supply of compressed air to essential services onboard ships, excluding air for engine starting. Key points include:
- Continuous Availability: Compressed air must be sufficient to meet the total demand of essential services at all times, including during normal operation, maintenance, and system failures.
- Engine Starting Air System: If compressed air is supplied from the engine starting air system, it must not compromise the capacity and availability of air required for engine starting as per UR M61.