Section 4 Companionway Openings and Other Deck Openings

401. Manholes and Flush Deck Openings

Manholes and flush deck openings which are provided in exposed parts of freeboard deck and su- perstructure decks or in the superstructures other than those enclosed, are to be closed with sub- stantial covers capable of keeping watertightness.

402. Companionways

1. Companionways on the freeboard deck are to be protected by enclosed superstructures or by deck- houses or companions which have strength and weather-tightness equivalent to those of enclosed superstructures.

2. Companionways on exposed superstructure decks and those on the top of deckhouses on the free- board deck which give access to spaces below the freeboard deck or space within enclosed super- structures, are to be protected by effective deckhouses or companions.

3. Access openings in the deckhouses or companions specified in the preceding 1 and 2 are to be

provided with doors in accordance with the requirements in Ch 15, 202. 1. And, the height of sills of the access openings above the surface of deck laminates is to be at least 380 mm .

403. Openings to Cargo Space

All of access and other openings to cargo spaces are to be provided with closing means capable of being operated from outside the spaces in case of fire.