Code of Federal Regulations · Section

§ 174.090 — Permeability Of Spaces

46 C.F.R. § 174.090

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When doing the calculations required in § 174.065—

(a) The permeability of a floodable space, other than a machinery space, must be as listed in Table 174.090; and

(b) Calculations in which a machinery space is treated as a floodable space must be based on an assumed machinery space permeability of 85%, unless the use of an assumed permeability of less than 85% is justified in detail.

Table 174.090—Permeability

46 C.F.R. § 174.085 46 C.F.R. § 174.100

Authorizing Statute