(a) Separate zones may be used for each deck, and on any particular deck, spaces separated by “A” or “B” Class bulkheads may be separately zoned.
(b) On any particular deck, large common areas may be zoned in accordance with table 76.23-5(b). All such zones within one common area shall be of approximately the same size. Zones of this type shall overlap in such a manner that the end sprinkler heads of both adjoining zones will cover the identical area.
| Square feet of common deck area
| Maximum number of zones
|
|---|
| Over
| Not over
|
|---|
| 800 | 1
|
| 800 | 1,800 | 2
|
| 1,800 | 3,000 | 3
|
| 3,000 | 5,000 | 4
|
| 5,000 | 9,000 | 5
|
| 9,000 | 16,000 | 6
|
| 16,000 | 30,000 | 7
|
| 30,000 | | 8 |
authority: 46 U.S.C. 3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation No. 00170.1, Revision No. 01.4
source: CGFR 65-50, 30 FR 16940, Dec. 30, 1965, unless otherwise noted.
cite as: 46 CFR 76.23-5