33 CFR §149.660

1. (a)Each pumping platform complex must have emergency power equipment including a power source, associated transforming equipment, and a switchboard to provide power to simultaneously operate all of the following for a continuous period of 18 hours:
   1. (1)Emergency lighting circuits;
   2. (2)Aids to navigation equipment;
   3. (3)Communications equipment;
   4. (4)Radar equipment;
   5. (5)Alarm systems;
   6. (6)Electrically operated fire pumps; and
   7. (7)Other electrical equipment identified as emergency equipment in the operations manual for the deepwater port.
2. (b)The equipment required by paragraph (a) of this section must:
   1. (1)All be located in the same space; and
   2. (2)Contain only machinery and equipment for the supply of emergency power (i.e., no oil or natural gas transfer pumping equipment) in accordance with 46 CFR 112.05.