Statutory Documents - MCA Publications - PYC - A Code of Practice for Yachts Carrying 13 to 36 Passengers (The Passenger Yacht Code) - Chapter 4 - Construction, Subdivision and Stability - Part II - Stability - 4.9 Permeability:
4.9 Permeability:
(1) For the purpose of the subdivision and damage stability calculations of the regulations, the permeability of each compartment or part of a compartment shall be as follows-
| Space | Permeability |
| Appropriated to stores. | 0.60 |
| Occupied by accommodation. | 0.95 |
| Occupied by machinery. | 0.85 |
| Void spaces. | 0.95 |
| Spaces similar to dry cargo spaces such as storage spaces and the like. | 0.95 |
| Intended for liquid. | 0 0 or 0.95 (Whichever results in the more severe requirement) |
(2) Other figures for permeability may be used if substantiated by calculations.
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