Section 1 General

101. Application

1. The requirements of this Chapter apply to hatchways, deck openings and other equipment on the exposed upper deck of dredger less than 24 m in length which are not intended to international voyage.

2. For the hatchways, deck openings and other equipment on the exposed upper deck of dredger greater than 24 m in length are to comply with the requirements specified in Pt 4, Ch 2 and Ch 4 of the Rules for the Classification of Steel Ships.

3. Relaxation from the requirements in this Chapter will be specially considered where the dredger has an unusually large freeboard.

102. Weathertightness

The hatchways and other deck openings are to be provided with closing means capable of being weathertight.

103. Position of exposed deck openings

The position of exposed deck openings is defined as follows.

position I : upon exposed freeboard and raised quarter deck, and upon exposed superstructure deck situated forward of a point 0.25 Ä from the forward perpendicular.

position II : upon exposed superstructure deck situated abaft of a point 0.25 Ä from the forward

perpendicular.