§171.072. Calculation of permeability for Type II subdivision.

46 C.F.R. § 171.072

When doing calculations to show compliance with § 171.070, the following uniform average permeabilities must be assumed:

(a)

85 percent in the machinery space.

(b)

60 percent in the following spaces:

(1)

Tanks that are normally filled when the vessel is in the full load condition.

(2)

Chain lockers.

(3)

Cargo spaces.

(4)

Stores spaces.

(5)

Mail or baggage spaces.

(c)

95 percent in all other spaces.

Notes, amendments, and revision history

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by USCG-2014-0688, 79 FR 58287, Sept. 29, 2014]

Authority: 46 U.S.C. 2103, 3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 0170.1.

Source: CGD 79-023, 48 FR 51017, Nov. 4, 1983, unless otherwise noted.

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by USCG-2014-0688, 79 FR 58287, Sept. 29, 2014]