A material for which ``on deck'' stowage only is required by column (10) of the Hazardous Materials Table (Sec. 172.101 of this subchapter) may be stowed ``under deck'' on unmanned barges. [Amdt. 176-8, 44 FR 23228, Apr. 19, 1979, as amended by Amdt. 176-30, 55 FR 52695, Dec. 21, 1990]