For a bulk carrier of 150m in length or more of single side skin construction built before July 1999, any cargo carried on or after the implementation date specified in SOLAS Regulation XII/3 and declared to have a density of between 1250 and 1780 kg/m3 must have its density verified by an accredited testing organisation, unless the ship complies with all the relevant requirements applicable to the carriage of solid bulk cargoes with a density of 1780 kg/m3 and over.