46 C.F.R. § 28.160
(e) The regulations in this section have preemptive effect over State or local regulation within the same field.
| Space | Minimumrequiredrating | Quantity and location |
|---|---|---|
| Safety areas, communicating corridors | 2-A | 1 in each main corridor not more than 150 ft (45.7m) apart. (May be located in stairways.) |
| Pilothouse | 20-B:C | 2 in the vicinity of the exit. |
| Service spaces, galleys | 40-B:C | 1 for each 2,500 sq ft (232.2 sq m) or fraction thereof suitable for hazards involved. |
| Paint lockers | 40-B | 1 outside space in the vicinity of the exit. |
| Accessible baggage and storerooms | 2-A | 1 for each 2,500 sq ft (232.2 sq m) or fraction thereof located in the vicinity of the exits, either inside or outside the spaces. |
| Workshops and similar spaces | 2-A | 1 outside the space in the vicinity of the exit. |
| Machinery spaces; Internal combustion propelling machinery | 40-B:C | 1 for each 1,000 brake horsepower or fraction thereof but not fewer than 2 or more than 6. |
| Electric propulsion motors or generator unit of open type | 40-B:C | 1 for each propulsion motor generator unit. |
| Auxiliary spaces | 40-B:C | 1 outside the space in the vicinity of the exit. |
| Internal combustion machinery | 40-B:C | 1 outside the space in the vicinity of the exit. |
| Electric emergency motors or generators | 40-B:C | 1 outside the space in the vicinity of the exit. |
[CGD 88-079, 56 FR 40393, Aug. 14, 1991; 56 FR 47679, Sept. 20, 1991, as amended by USCG-2012-0196, 81 FR 48247, July 22, 2016]