[Code of Federal Regulations]
[Title 46, Volume 7]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR177.500]

[Page 230-231]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 177_CONSTRUCTION AND ARRANGEMENT--Table of Contents
 
                      Subpart E_Escape Requirements
 
Sec. 177.500  Means of escape.


    (a) Except as otherwise provided in this section, each space 
accessible to passengers or used by the crew on a regular basis, must 
have at least two means of escape, one of which must not be a watertight 
door.
    (b) The two required means of escape must be widely separated and, 
if possible, at opposite ends or sides of the space to minimize the 
possibility of one incident blocking both escapes.
    (c) Subject to the restrictions of this section, means of escape may 
include normal exits and emergency exits, passageways, stairways, 
ladders, deck scuttles, and windows.
    (d) The number and dimensions of the means of escape from each space 
must be sufficient for rapid evacuation in an emergency for the number 
of persons served. In determining the number of persons served, a space 
must be considered to contain at least the number of persons as follows:
    (1) Passenger overnight accommodation spaces: Designed capacity;
    (2) Accommodation spaces having fixed seating for passengers: 
Maximum seating capacity;
    (3) Public spaces, including spaces such as casinos, restaurants, 
club rooms, and cinemas, and public accommodation spaces as defined in 
Sec. 175.400 of this subchapter, except overnight accommodation spaces: 
One person may be permitted for each 0.9 square meters (10 square feet) 
of deck area. In computing such deck area, the following areas must be 
excluded:
    (i) Areas for which the number of persons permitted is determined 
using the fixed seating criterion;
    (ii) Obstructions, including stairway and elevator enclosures, 
elevated stages, bars, and cashier stands, but not including slot 
machines, tables, or other room furnishings;
    (iii) Toilets and washrooms;
    (iv) Interior passageways less than 860 millimeters (34 inches) wide 
and passageways on open deck less than 710 millimeters (28 inches) wide;
    (v) Spaces necessary for handling lifesaving equipment, anchor 
handling equipment, or line handling gear, or in way of sail booms or 
running rigging; and
    (vi) Bow pulpits, swimming platforms, and areas that do not have a 
solid deck, such as netting on multi hull vessels;
    (4) Crew overnight accommodation spaces: Two-thirds designed 
capacity; and
    (5) Work spaces: Occupancy under normal operating conditions.
    (e) The dimensions of a means of escape must be such as to allow 
easy movement of persons when wearing life jackets. There must be no 
protrusions in means of escape that could cause injury, ensnare 
clothing, or damage life jackets.
    (f) The minimum clear opening of a door or passageway used as a 
means of escape must not be less than 810 millimeters (32 inches) in 
width, however, doors or passageways used solely by crew members must 
have a clear opening not less than 710 millimeters (28 inches). The sum 
of the width of all

[[Page 231]]

doors and passageways used as means of escape from a space must not be 
less than 8.4 millimeters (0.333 inches) multiplied by the number of 
passengers for which the space is designed.
    (g) A dead end passageway, or the equivalent, of more than 6.1 
meters (20 feet) in length is prohibited.
    (h) Each door, hatch, or scuttle, used as a means of escape, must be 
capable of being opened by one person, from either side, in both light 
and dark conditions. The method of opening a means of escape must be 
obvious, rapid, and of adequate strength. Handles and securing devices 
must be permanently installed and not capable of being easily removed. A 
door, hatch or scuttle must open towards the expected direction of 
escape from the space served.
    (i) A means of escape which is not readily apparent to a person from 
both inside and outside the space must be adequately marked in 
accordance with Sec. 185.606 of this chapter.
    (j) A ladder leading to a deck scuttle may not be used as a means of 
escape except:
    (1) On a vessel of not more than 19.8 meters (65 feet) in length, a 
vertical ladder and a deck scuttle may be used as not more than one of 
the means of escape from passenger accommodation space; or
    (2) As not more than one of the means of escape from any crew 
accommodation space or work space.
    (k) Each ladder used as a means of escape must be mounted at least 
180 millimeters (7 inches) from the nearest permanent object in back of 
the ladder. Rungs must be:
    (1) At least 405 millimeters (16 inches) in width; and
    (2) Not more than 305 millimeters (12 inches) apart, and uniformly 
spaced for the length of the ladder with at least 114 millimeters (4.5 
inches) clearance above each rung.
    (l) When a deck scuttle serves as a means of escape, it must not be 
less than 455 millimeters (18 inches) in diameter and must be fitted 
with a quick acting release and a holdback device to hold the scuttle in 
an open position.
    (m) Footholds, handholds, ladders, and similar means provided to aid 
escape, must be suitable for use in emergency conditions, of rigid 
construction, and permanently fixed in position, unless they can be 
folded, yet brought into immediate service in an emergency.
    (n) On a vessel of not more than 19.8 meters (65 feet) in length, a 
window or windshield of sufficient size and proper accessibility may be 
used as one of the required means of escape from an enclosed space, 
provided it:
    (1) Does not lead directly overboard;
    (2) Can be opened or is designed to be kicked or pushed out; and
    (3) Is suitably marked.
    (o) Only one means of escape is required from a space where:
    (1) The space has a deck area less than 30 square meters (322 square 
feet);
    (2) There is no stove, heater, or other source of fire in the space;
    (3) The means of escape is located as far as possible from a 
machinery space or fuel tank; and
    (4) If an accommodation space, the single means of escape does not 
include a deck scuttle or a ladder.
    (p) Alternative means of escape from spaces may be provided if 
acceptable to the cognizant OCMI.

[CGD 85-080, 61 FR 961, Jan. 10, 1996; 62 FR 64306, Dec. 5, 1997]