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Title 46: Shipping
CHAPTER I: COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
SUBCHAPTER S: SUBDIVISION AND STABILITY
PART 171: SPECIAL RULES PERTAINING TO VESSELS CARRYING PASSENGERS
Subpart C: Large Vessels
171.073 - Treatment of stepped and recessed bulkheads in Type II subdivision.
(a) A main transverse watertight bulkhead may not be stepped unless additional watertight bulkheads are located as shown in Figure 171.067(a) so that the distances A, B, C, and D illustrated in Figure 171.067(a) comply with the following:
(1) A and B must not exceed the maximum bulkhead spacing that permits compliance with ? 171.070; and
(2) C and D must not be less than the minimum spacing specified in ? 171.070(e).
(b) A main transverse watertight bulkhead may not be recessed unless all parts of the recess are inboard from the shell of the vessel as illustrated in Figure 171.067(c).
(c) If a main transverse watertight bulkhead is recessed or stepped, an equivalent plane bulkhead must be used in the calculations required by ? 171.070.
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