(43)   Master of vessels specially responsible -

The master or other officer in-charge of any vessel which had carried petroleum on board whether as a cargo or as fuel, or any vessel licensed under rule 33 shall be responsible to see that --

1. all due precautions are taken for the prevention of accident due to ignition of petroleum or petroleum vapour;

2. so long as there is petroleum or petroleum vapour in a tank all openings from the tank to the atmosphere except the gas escape line are kept closed and locked or otherwise securely fastened; and when it is necessary to take dips or samples, the sullage plugs or sighting port are closed immediately after such dips or samples are taken :
   
   Provided that subject to the provisions of Cl. (c) the master or officer in-charge may cause the necessary openings to be opened or unlocked for the purpose of taking on board or unloading petroleum Class B or petroleum Class C for cleaning the tanks or for other sufficient reasons;
   

3. [no person enters a tank or an enclosed space which had, or is suspected to have contained petroleum without wearing a breathing apparatus of a type approved by the Chief controller unless an officer appointed by the Central Government in this behalf has examined the tank or space with the aid of an approved petroleum vapour testing instrument and has been certified by him in writing that the said tank or space is free from petroleum vapour.]
   

4. the vessel does not undergo repair by hot work to any of its tanks, part or fitting which are likely to contain petroleum vapour or petroleum unless each such tank, part of fitting, as the case may be, has been examined by an officer appointed under Cl.(c) with the aid of an approved petroleum vapour test instrument and has been certified by him in writing that the tank, part or fitting is free from petroleum vapour or petroleum;
   

5. the vessel used for the carriage of petroleum in bulk or a cargo is not taken among other ship or to a dry dock unless -- 

1. the vessel is proceeding to an oil berth, or
   

2. a certificate from an officer appointed under Cl. (e) to the effect that he has examined all the tanks, cofferdams, pump rooms and such other parts as are deemed necessary with the aid of an approved petroleum vapour testing instrument and that such tanks, cofferdams, pump rooms and other parts are free from petroleum vapour; and declaration from the Master that to the best of his knowledge there is no petroleum vapour, present in other parts of the vessel not covered by the above certificate are produced;

6. the officer granting certificate under Cl. (c) or Cl. (d) or Cl. (e) may specify such conditions and make such recommendations as are necessary to maintain gas-free conditions of tanks, space or parts certified;
   

7. [the certificate referred to in Cls. (c), (d) and (e) shall be granted only on receipt of fee fixed by the Central Government from time to time;]
   

8. the vessel or any steamer or tug towing or otherwise attending on such vessel exhibits conspicuously -

1. from sunrise to sunset a red flag not less than 90 centimeters square with a white circular center 15 centimeters in diameter if petroleum Class A is carried and a red flag not less than 90 centimeters square if petroleum Class B is carried; and
   

2. from sunset to sunrise such warning lights as may be requires by the Conservator;

(44)   Loading and unloading of bulk petroleum -

1. The loading and unloading of petroleum in bulk shall be by armoured hose and metal pipes.

2. All hoses, pipes and other appliances used in the holding or unloading of petroleum shall be electrically continuous and free from leakage.

(45)   Precautions on suspension of loading or unloading--

When the loading or unloading of petroleum