(a) Cargo pump rooms and cargo compressor rooms must be above the weather deck and must be within the cargo area.
(b) Where pumps and compressors are driven by a prime mover in an adjacent gas safe space:
(1) The bulkhead or deck must be gastight; and
(2) The shafting passing through the bulkhead or deck must be sealed by a fixed oil reservoir gland seal, a pressure grease seal, or another type of positive pressure seal specially approved by the Commandant (CG-ENG). [CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR 4782, Feb. 3, 1983]