Water level detectors on non-bulk cargo ships The MSC 102 approved the draft of the new SOLAS Regulation II-1/25-1, requiring new multiple-hold cargo ships to be fitted with water level detectors in each cargo hold intended for cargo. Bilge alarm sensors are acceptable as water level detectors. The draft new regulation harmonizes the requirements for bulk carriers and non-bulk carriers, and will not apply to tankers, liquid holds and tanks entirely above the freeboard deck. The draft of the new regulation will enter into force on 1 January 2024, subject to adoption by MSC 103.