Rule 22

Visibility of lights

The lights prescribed in these Rules shall have an intensity as specified in Section 8 of Annex1 to these Regulations so as to be visible at the following minimum ranges.

(a) In vessels of 50 metres or more in length:

  • a masthead light, 6 miles;

  • a sidelight, 3 miles;

  • a sternlight, 3 miles;

  • a towing light, 3 miles;

  • a white, red, green or yellow all-round light, 3 miles.

(b) In vessels of 12 metres or more in length but less than than 50 metres in length:

  • a masthead light, 5 miles; except where the length of the vessel is less than 20 metres, 3 miles.

  • a sidelight, 2 miles;

  • a sternlight, 2 miles;

  • a towing light, 2 miles;

  • a white, red, green or yellow all-round light, 2 miles.

(c) In vessels of less than 12 metres in length:

  • a masthead light, 2 miles;

  • a sidelight, 1 miles;

  • a sternlight, 2 miles;

  • a towing light, 2 miles;

  • a white, red, green or yellow all-round light, 2 miles.

(d) In inconspicuous, partly submerged vessels or objects being towed:

  • a white all round light, 3 miles.

Meaning of this rule.

Go to rule 23.

 

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