Section 183.112 - Flotation material and air chambers(a) Flotation materials must meet the requirements in § 183.114 as listed in Table 183.114 when used in the:(3) bilge, unless located in a sealed compartment.(b) Air chambers used to meet the flotation requirements of this subpart must not be integral with the hull.CGD 77-145, 43 FR 56859, Dec. 4, 1978; 44 FR 47934, Aug. 16, 1979