Merchant Shipping Act, 1951 (Act No. 57 of 1951)RegulationsMerchant Shipping (Radio Installations) Regulations, 2002Part 2 : GMDSS Requirements20. Position-updating |
If radio equipment required by this Part is capable of automatically providing the ship's position when transmitting a distress alert, the ship's position and the time the ship was at that position must be made available for transmission by the radio equipment—
(a) | from a navigation receiver, if one is fitted; or |
(b) | manually, at intervals not exceeding four hours, while the ship is at sea |