Source: http://cclme.org/viewcontents/?f=1-46CFR174.txt
Timestamp: 2019-05-26 07:20:44
Document Index: 462501616

Matched Legal Cases: ['ART 174', 'ART 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§56', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§42', '§ 174', '§ 174', '§56', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§42', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§ 174', '§174']

CCLME.ORG - 46 CFR PART 174—SPECIAL RULES PERTAINING TO SPECIFIC VESSEL TYPES
46 CFR PART 174—SPECIAL RULES PERTAINING TO SPECIFIC VESSEL TYPES
1-46CFR174.txt - CFR - 4/18/2006 0:00:00 - Regulation - US
Authority: 42 U.S.C. 9118, 9119, 9153; 43 U.S.C. 1333; 46 U.S.C. 3306, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 0170.1.
Source: CGD 79–023, 48 FR 51048, Nov. 4, 1983, unless otherwise noted.
§ 174.005 Applicability.
[CGD 95–012, 60 FR 48052, Sept. 18, 1995; 60 FR 50120, Sept. 28, 1995, as amended by CGD 82–004 and CGD 86–074, 60 FR 57671, Nov. 16, 1995; CGD 82–004 and CGD 86–074, 62 FR 49353, Sept. 19, 1997]
§ 174.007 Incorporation by reference.
(a) Certain material is incorporated by reference into this part with the approval of the Director of the Federal Register in accordance with 5 U.S.C. 552(a). To enforce any edition other than that specified in paragraph (b) of this section, the Coast Guard must publish notice of change in the Federal Register and make the material available to the public. All approved material is on file at the U.S. Coast Guard, Office of Design and Engineering Standards (G-MSE), 2100 Second Street SW., Washington, DC 20593–0001 and at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202–741–6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. All approved material is available from the sources indicated in paragraph (b) of this section.
ASTM F 1196–94, Standard Specification for Sliding Watertight Door Assemblies—174.100 ASTM F 1197–89 (1994), Standard Specification for Sliding Watertight Door Control Systems—174.100
[CGD 88–032, 56 FR 35828, July 29, 1991, as amended by CGD 95–072, 60 FR 50468, Sept. 29, 1995; CGD 96–041, 61 FR 50734, Sept. 27, 1996; CGD 97–057, 62 FR 51049, Sept. 30, 1997; USCG–1999–5151, 64 FR 67186, Dec. 1, 1999; 69 FR 18803, Apr. 9, 2004]
§ 174.010 Specific applicability.
§ 174.015 Intact stability.
§ 174.020 Alternate intact stability criterion.
Category Beam/depth ratio Draft/depth ratio
A.............................. 3.00 to 3.74....... Equal to or less
than 0.70.
B.............................. 3.75 to 3.99....... Equal to or less
than 0.72.
C.............................. 4.00 to 4.49....... Equal to or less
than 0.76.
D.............................. 4,50 to 6.00....... Equal to or less
than 0.80.
§ 174.030 Specific applicability.
§ 174.035 Definitions.
§ 174.040 Stability requirements: general.
§ 174.045 Intact stability requirements.
Area(A)=(K)×(Area (B))
(1) K=1.4 except that if the unit is a column stabilized unit K=1.3;
[CGD 79–023, 48 FR 51048, Nov. 4, 1983, as amended by CGD 83–071, 52 FR 6979, Mar. 6, 1987]
§ 174.050 Stability on bottom.
§ 174.055 Calculation of wind heeling moment (Hm).
(a) The wind heeling moment (Hm) of a unit in a given normal operating condition or severe storm condition is the sum of the individual wind heeling moments (H) calculated for each of the exposed surfaces on the unit; i.e., Hm=S H.
H=k(v)2(Ch)(Cs)(A)(h)
(1) H=wind heeling moment for an exposed surface on the unit in foot-pounds (kilogram-meters);
(2) k=0.00338 lb./(ft.2-knots2) (0.0623 (kg-sec2)/m4);
(3) v=wind velocity of—
(4) A=projected area in square feet (squrae meters) of an exposed surface on the unit;
(5) Ch=height coefficient for “A” from Table 174.055(a);
(6) Cs=shape coefficient for “A” from Table 174.055(b); and
(7) h=the vertical distance in feet (meters) from the center of lateral resistance of the underwater hull to the center of wind pressure on “A”.
Table 174.055(a)_Ch Values
--------------------------------------------------------------------------------------------------------- Ch.
Over Not exceeding Over Not exceeding
350 400 106.5 2.0................ 1.52
Above 850.......................... Above 256 1.80
Note: The ``Ch'' value in this table, used in the equation described in section § 174.055(b), corresponds
to the value of the vertical distance in feet (meters) from the water surface at the design draft of the unit
to the center of area of the ``A'' value used in the equation.
Table 174.055(b)_Cs Values
Shape Cs.
Cylindrical shapes............................................... 0.5
Hull (surface type).............................................. 1.0
Deckhouse........................................................ 1.0
Cluster of deckhouses............................................ 1.1
Isolated structural shapes (cranes, angles, channels, beams, 1.5
etc.)...........................................................
Under deck areas (smooth surfaces)............................... 1.0
Under deck areas (exposed beams and girders)..................... 1.3
Rig derrick (each face and open truss works)..................... 1.25
Note: The ``Cs'' value in this table, used in the equation described in
§ 174.055(b), corresponds to the shape of the projected ``A'' in
§ 174.065 Damage stability requirements.
§ 174.070 General damage stability assumptions.
§ 174.075 Compartments assumed flooded: general.
§ 174.080 Flooding on self-elevating and surface type units.
§ 174.085 Flooding on column stabilized units.
§ 174.090 Permeability of spaces.
Table 174.090_Permeability
Spaces and tanks Permeability (percent)
Storeroom spaces........................... 60.
Accommodation spaces....................... 95.
Voids...................................... 95.
Consumable liquid tanks.................... 95 or 0.\1\
Other liquid tanks......................... 95 or 0.\2\
\1\ Whichever results in the more disabling condition.
\2\ If tanks are partially filled, the permeability must be determined
from the actual density and amount of liquid carried.
§ 174.100 Appliances for watertight and weathertight integrity.
[CGD 79–023, 48 FR 51048, Nov. 4, 1983, as amended by CGD 88–032, 56 FR 35828, July 29, 1991; USCG–2000–7790, 65 FR 58464, Sept. 29, 2000]
§ 174.140 Specific applicability.
§ 174.145 Intact stability requirements.
Source: CGD 82–004 and CGD 86–074, 62 FR 49353, Sept. 19, 1997, unless otherwise noted.
§ 174.180 Applicability.
Each offshore supply vessel (OSV), except a liftboat inspected under subchapter L of this chapter, must comply with this subpart.
§ 174.185 Intact stability.
Table 174.185_Minimal Freeboard at the Stern
at stern in
LBP in meters (feet) millimeters
Less than 20 (65).......................................... 300 (12)
20 (65) but less than 30 (100)............................. 380 (15)
30 (100) but less than 40 (130)............................ 400 (18)
40 (130) but less than 50 (155)............................ 500 (20)
50 (155) but less than 60 (190)............................ 560 (22)
60 (190) but less than 70 (230)............................ 610 (24)
70 (230) and greater....................................... 660 (26)
§ 174.190 Collision bulkhead.
(b) Penetration of the collision bulkhead by piping must be minimal, and, where fitted, piping must meet the requirements of §§56.50–1(b)(1) and (c) and 128.230 of this chapter.
§ 174.195 Bulkheads in machinery spaces.
§ 174.200 Damaged stability in machinery spaces for all OSVs.
§ 174.205 Additional damaged stability for OSVs carrying more than 16 offshore workers.
§ 174.207 Damaged stability criteria.
Table 174.207(a)_Extent of Damage
Longitudinal extent (vessels with LBP not .1L or 1.8 meters (6 feet):,
greater than 45 meters [143 feet]). whichever is greater in
Longitudinal extent (vessels with LBP 3 meters (10 feet) + .03L.
greater than 45 meters [143 feet]).
Transverse extent*........................ 760 millimeters (30 inches).
Vertical extent........................... From baseline upward without
*The transverse penetration applies inboard from the side of the vessel,
at right angles to the centerline, at the level of the deepest load
Table 174.207(b)_Permeability of Spaces
Spaces and tanks Permeability
Storerooms................................ 60 percent.
Accommodations............................ 95 percent.
Machinery................................. 85 percent.
Voids and passageways..................... 95 percent.
Dry-bulk tanks............................ 0 (*) or 95 percent.
Consumable-liquid tanks................... 0 (*) or 95 percent.
Other liquid tanks........................ 0 (*) 0 (**) or 95 percent.
**If tanks are partly filled, the permeability must be determined from
the actual density and amount of liquid carried.
§ 174.210 Watertight doors in watertight bulkheads.
§ 174.215 Drainage of weather deck.
The weather deck must have open rails to allow rapid clearing of water, or must have freeing ports in compliance with §42.15–70 of this chapter.
§ 174.220 Hatches and coamings.
§ 174.225 Hull penetrations and shell connections.
Each overboard discharge and shell connection except an engine exhaust must comply with §§56.50–95 and 128.230 of this chapter.
Source: CGD 82–004 and CGD 86–074, 62 FR 49355, Sept. 19, 1997, unless otherwise noted.
§ 174.240 Applicability.
§ 174.245 General.
§ 174.250 Unrestricted service.
§ 174.255 Restricted service.
§ 174.260 Freeboard.
Source: CGD 76–080, 54 FR 36977, Sept. 6, 1989, unless otherwise noted.
§ 174.300 Specific applicability.
§ 174.305 Definitions.
Length has the same meaning as contained in §42.13–15(a) of this chapter.
§ 174.310 General.
Table 174.310_Permeability of Floodable Spaces
Storerooms................................ 0.60
Accommodation spaces...................... 0.95
Consumable liquid tanks................... 0.00 or 0.95_whichever
results in the more
Machinery space........................... 0.85_unless otherwise
supported by calculations.
Cargo tanks............................... Determined from the actual
density and amount of
liquid carried in the tank.
§ 174.315 Extent and character of damage.
Table 174.315_Extent of Damage Collision Penetration
Longitudinal 0.495L2/3 or 47.6 feet. [(\1/
extent 3\)(L)2/3 or 14.5 meters]
Transverse extent B/5 or 37.7 feet. (11.5 meters),
\1\ whichever is less.
Vertical extent From the base line upward without
\1\ Damage applied inboard from the vessel's side at a right angle to
the centerline at the draft corresponding to the working freeboard
assigned under subchapter E of this chapter.
§ 174.320 Damage survival.
§ 174.325 Equalization.
§ 174.330 Jettisoning of spoil.
§ 174.335 Watertight doors.
(2) Lessthan 24 inches above the final waterline as shown by the calculations required by §174.310 in each damage condition up to and including the maximum amount of assumed damage. (continued)