| Following is the requirement of lifebuoys, which is not correct? |
| | At least two shall be placed in the vicinity of the stern |
| At least one lifebuoy on each side of the ship shall be fitted with a buoyant lifeline |
| Not less than one third of the total number of lifebuoys shall be provided with lifebuoy self-igniting lights |
| Each lifebuoy shall be marked in block capitals of the Roman alphabet with the name and port of registry of the ship |
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| 《国际海上人命安全公约》第III章B部分第7条第1节 |