Temporary cessation of ship operation treated as continuing operation, but temporarily disqualified vessels are excluded from qualifying status. A temporary cessation in operating a qualifying ship is deemed not to be a cessation and the company is treated as operating that qualifying ship; however, if a qualifying company continues to operate a vessel that temporarily ceases to qualify, that vessel shall not be considered a qualifying ship for the purposes of the Chapter, with the provision amended to include inland vessels within the non-qualifying treatment.