Rule 22 Visibility of Lights

Visibility of Lights — International

The lights prescribed in these Rules shall have an intensity as specified in section 8 of Annex I 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, six miles,

— a sidelight, three miles,

— a sternlight, three miles,

— a towing light, three miles,

— a white, red, green or yellow all-round light, three miles.

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

— a masthead light, five miles; except that where the length of the vessel is less than 20 metres, three miles,

— a sidelight, two miles,

— a sternlight, two miles,

— a towing light, two miles,

— a white, red, green or yellow all-round light, two miles.

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

— a masthead light, two miles,

— a sidelight, one mile,

— a sternlight, two miles,

— a towing light, two miles,

— a white, red, green or yellow all-round light, two miles.

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

— a white all-round light, three miles.

Visibility of Lights — Canadian Modification

(e) In vessels exhibiting

— a special flashing light, 2 miles.

— a blue flashing light, 2 miles.

(f) [Repealed, SOR/2008-272, s. 15]