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(a) A bright white light visible from all directions, at a height of not less than 5 m; this height may, however, be reduced if the ferry-boat is of a length of less than 20 m;

(b) A bright green light visible from all directions, about 1 m above the light referred to in (a) above;

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A green ball at a height of not less than 5 6 m.

The height of the bright white light and the green ball may be reduced if the ferry-boat is of a length of less than 20 m.

2. The leading boat or float of a longitudinal cable ferry-boat shall carry, by night, not less than 3 m above the water level, a bright white light visible from all directions.

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