Section 5 Special sound signals

(a) In Canadian waters and fishing zones, a vessel engaged in fishing as described in sections 2 and 3 of this Annex shall, in any condition of visibility, sound the following signals on her whistle:

(i) four blasts in succession, namely, two prolonged blasts followed by two short blasts when shooting a net or gear,

(ii) three blasts in succession, namely, two prolonged blasts followed by one short blast when hauling a net or gear, and

(iii) four blasts in succession, namely, one short blast followed by two prolonged blasts, followed by one short blast when a net or gear is fast to an obstruction.

(b) When in or near an area of restricted visibility, the signals described in paragraph (a) shall be sounded four to six seconds after the sound signal prescribed in Rule 35(c).