reglab/statecodes huggingface dataset:
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1010 - RAMPS › Subsection 1010.1 - Scope

Current through Register 1525, July 5, 2024
The provisions of this section shall apply to
ramps
used as a component of a
means of
				  egress
.
Exceptions:
1. Other than
ramps
that are
				part of the
accessible routes
providing access in accordance
				with Sections 1108.2 through 1108.2.4 and 1108.2.6, ramped
aisles
within assembly rooms or spaces shall conform with the
				provisions in Section 1028.11.
2.
				Curb
ramps
shall comply with ICC A117.1.
3. Vehicle ramps in parking garages for
				pedestrian
exit access
shall not be required to comply with
				Sections 1010.3 through 1010.9 when they are not an
accessible
				route
serving
accessible
parking spaces, other
				required accessible elements or part of an
accessible
means of egress
.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1010 - RAMPS › Subsection 1010.2 - Slope

Current through Register 1525, July 5, 2024
Ramps
used as part of a
means of
				  egress
shall have a running slope not steeper than one unit vertical
				  in 12 units horizontal (8-percent slope). The slope of other pedestrian
ramps
shall not be steeper than one unit vertical in eight
				  units horizontal (12.5-percent slope).
Exception:
Aisle ramp
slope in
				  occupancies of Group A or assembly occupancies accessory to Group E occupancies
				  shall comply with Section 1028.11.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1010 - RAMPS › Subsection 1010.3 - Cross slope

Current through Register 1525, July 5, 2024
The slope measured perpendicular to the direction of travel
				  of a
ramp
shall not be steeper than one unit vertical in 48
				  units horizontal (2-percent slope).
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1010 - RAMPS › Subsection 1010.5 - Minimum dimensions

Current through Register 1525, July 5, 2024
The minimum dimensions of
means of egress
ramps
shall comply with Sections 1010.5.1 through
				  1010.5.3.
1010.5.1
Width.
The minimum width of a
means of egress ramp
shall not be less than that required for
corridors
by Section
				1018.2. The clear width of a
ramp
between
handrails
, if provided, or other permissible projections shall
				be 36 inches (914 mm) minimum.
1010.5.2
Headroom.
The minimum
				headroom in all parts of the
means of egress
ramp
shall not be less than 80 inches (2032 mm).
1010.5.3
Restrictions.
Means of egress
ramps
shall not reduce in
				width in the direction of egress travel. Projections into the required
ramp
and landing width are prohibited. Doors opening onto a
				landing shall not reduce the clear width to less than 42 inches (1067
				mm).
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1010 - RAMPS › Subsection 1010.6 - Landings

Current through Register 1525, July 5, 2024
Ramps
shall have landings at the bottom and
				  top of each
ramp
, points of turning, entrance, exits and at
				  doors. Landings shall comply with Sections 1010.6.1 through 1010.6.5.
1010.6.1
Slope.
Landings shall
				have a slope not steeper than one unit vertical in 48 units horizontal
				(2-percent slope) in any direction. Changes in level are not
				permitted.
1010.6.2
Width.
The landing shall be at least as wide as the widest
ramp
run adjoining the landing.
1010.6.3
Length.
The landing
				length shall be 60 inches (1525 mm) minimum.
Exceptions:
1. In Group R-2 and R-3 individual dwelling
				and sleeping units that are not required to be
Accessible
				units
,
Type A units
or
Type B units
in accordance with Section 1107, landings are permitted to be 36 inches (914
				mm) minimum.
2. Where the
ramp
is not a part of an
accessible route
,
				the length of the landing shall not be required to be more than 48 inches (1220
				mm) in the direction of travel.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1010 - RAMPS › Subsection 1010.7 - Ramp construction

Current through Register 1525, July 5, 2024
All
ramps
shall be built of materials
				  consistent with the types permitted for the type of construction of the
				  building, except that wood
handrails
shall be permitted for
				  all types of construction.
Ramps
used as an
exit
shall conform to the applicable requirements of Sections
				  1022.1 through 1022.6 for
exit enclosures
.
1010.7.1
Ramp surface.
The
				surface of
ramps
shall be of slip-resistant materials that are
				securely attached.
1010.7.2
Outdoor conditions.
Outdoor
ramps
and outdoor
				approaches to
ramps
shall be designed so that water will not
				accumulate on walking surfaces.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1010 - RAMPS › Subsection 1010.8 - Handrails

Current through Register 1525, July 5, 2024
Ramps
with a rise greater than 6 inches (152
				  mm) shall have handrails on both sides.
Handrails
shall comply
				  with Section 1012.
Exception:
Handrails
for ramped
aisles
are not required where permitted by Section
				  1028.13.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1010 - RAMPS › Subsection 1010.9 - Edge protection

Current through Register 1525, July 5, 2024
Edge protection complying with Section 1010.9.1 or 1010.9.2
				  shall be provided on each side of
ramp
runs and at each side
				  of
ramp
landings.
Exceptions:
1. Edge protection is not required on
ramps
that are not required to have
handrails
, provided they have flared sides that comply with
				the ICC A117.1 curb ramp provisions.
2. Edge protection is not required on the
				sides of ramp landings serving an adjoining
ramp
run or
stairway
.
3. Edge
				protection is not required on the sides of
ramp
landings
				having a vertical drop off of not more than
				1/2 inch (12.7 mm) within 10
				inches (254 mm) horizontally of the required landing area.
4. In assembly spaces with fixed seating,
				edge protection is not required on the sides of
ramps
where
				the
ramps
provide access to the adjacent seating and
aisle accessways
.
1010.9.1
Curb, rail, wall or barrier.
A curb, rail, wall or barrier shall
				be provided to serve as edge protection. A curb shall be a minimum of 4 inches
				(102 mm) in height. Barriers shall be constructed so that the barrier prevents
				the passage of a 4-inch-diameter (102 mm) sphere, where any portion of the
				sphere is within 4 inches (102 mm) of the floor or ground surface.
1010.9.2
Extended floor or ground
				surface.
The floor or ground surface of the
ramp
run or
				landing shall extend 12 inches (305 mm) minimum beyond the inside face of a
handrail
complying with Section 1012.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1010 - RAMPS › Subsection 1010.10 - Guards

Current through Register 1525, July 5, 2024
Guards
shall be provided where required by
				  Section 1013 and shall be constructed in accordance with Section
				  1013.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1011 - EXIT SIGNS › Subsection 1011.1 - Where required

Current through Register 1525, July 5, 2024
Exits
and
exit access
doors
				  shall be marked by an
approved exit
sign readily visible from
				  any direction of egress travel. The path of egress travel to
exits
and within
exits
shall be marked by
				  readily visible
exit
signs to clearly indicate the direction
				  of egress travel in cases where the
exit
or the path of egress
				  travel is not immediately visible to the occupants. Intervening
means
				  of egress
doors within
exits
shall be marked by
exit
signs.
Exit
sign placement shall be such
				  that no point in an
exit access
corridor
or
exit passageway
is more than 100 feet (30 480 mm) or the
listed
viewing distance for the sign, whichever is less, from
				  the nearest visible
exit
sign.
Exceptions:
1.
Exit
signs are not
				required in rooms or areas that require only one
exit
or
exit access
.
2.
				Main exterior
exit
doors or gates that are obviously and
				clearly identifiable as
exits
need not have
exit
signs where
approved
by the
building official
.
3.
Exit
signs are not
				required in occupancies in Group U and individual sleeping units or dwelling
				units in Group R-1, R-2 or R-3.
4.
Exit
signs are not required in day rooms, sleeping rooms or
				dormitories in occupancies in Group I-3.
5. In occupancies in Groups A-4 and A-5,
exit
signs are not required on the seating side of vomitories
				or openings into seating areas where
exit
signs are provided
				in the concourse that are readily apparent from the vomitories. Egress lighting
				is provided to identify each vomitory or opening within the seating area in an
				emergency.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1011 - EXIT SIGNS › Subsection 1011.2 - Illumination

Current through Register 1525, July 5, 2024
Exit
signs shall be internally or externally
				  illuminated.
Exception:
Tactile signs required by Section
				  1011.3 need not be provided with illumination.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1011 - EXIT SIGNS › Subsection 1011.3 - Tactile exit signs

Current through Register 1525, July 5, 2024
A tactile sign stating EXIT and complying with ICC A117.1
				  shall be provided adjacent to each door to an
area of refuge
,
				  an exterior area for assisted rescue, an
exit
stairway
, an
exit
ramp
, an
exit passageway
and the
exit
				  discharge
.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1011 - EXIT SIGNS › Subsection 1011.4 - Internally illuminated exit signs

Current through Register 1525, July 5, 2024
Electrically powered,
self-luminous
and
photoluminescent
exit
signs shall be
listed
and labeled in accordance with UL 924 and shall be
				  installed in accordance with the manufacturer's instructions and Chapter 27.
Exit
signs shall be illuminated at all
				  times.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1011 - EXIT SIGNS › Subsection 1011.5 - Externally illuminated exit signs

Current through Register 1525, July 5, 2024
Externally illuminated
exit
signs shall
				  comply with Sections 1011.5.1 through 1011.5.3.
1011.5.1
Graphics.
Every
exit
sign and directional
exit
sign shall
				have plainly legible letters not less than 6 inches (152 mm) high with the
				principal strokes of the letters not less than
				3/4 inch (19.1 mm) wide. The
				word "EXIT" shall have letters having a width not less than 2 inches (51 mm)
				wide, except the letter "I," and the minimum spacing between letters shall not
				be less than 3/8 inch (9.5
				mm). Signs larger than the minimum established in this section shall have
				letter widths, strokes and spacing in proportion to their height.
The word "EXIT" shall be in high contrast with the background
				  and shall be clearly discernible when the means of
exit
sign
				  illumination is or is not energized. If a chevron directional indicator is
				  provided as part of the
exit
sign, the construction shall be
				  such that the direction of the chevron directional indicator cannot be readily
				  changed.
1011.5.2
Exit sign illumination.
The face of an
exit
sign
				illuminated from an external source shall have an intensity of not less than 5
				footcandles (54 lux).
1011.5.3
Power source.
Exit
signs shall be illuminated at
				all times. To ensure continued illumination for a duration of not less than 90
				minutes in case of primary power loss, the sign illumination means shall be
				connected to an emergency power system provided from storage batteries, unit
				equipment or an on-site generator. The installation of the emergency power
				system shall be in accordance with Chapter 27.
Exception:
Approved exit
sign
				  illumination means that provide continuous illumination independent of external
				  power sources for a duration of not less than 90 minutes, in case of primary
				  power loss, are not required to be connected to an emergency electrical
				  system.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1012 - HANDRAILS › Subsection 1012.1 - Where required

Current through Register 1525, July 5, 2024
Handrails
for
stairways
and
ramps
shall be adequate in strength and attachment in
				  accordance with Section 1607.7.
Handrails
required for
stairways
by Section 1009.12 shall comply with Sections 1012.2
				  through 1012.9.
Handrails
required for
ramps
by Section 1010.8 shall comply with Sections 1012.2 through
				  1012.8.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1012 - HANDRAILS › Subsection 1012.2 - Height

Current through Register 1525, July 5, 2024
Handrail
height, measured above
stair
tread
nosings
, or finish surface of
ramp
slope, shall be uniform, not less than 34 inches (864 mm)
				  and not more than 38 inches (965 mm).
Handrail
height of
alternating tread devices
and ship ladders, measured above
				  tread
nosings
, shall be uniform, not less than 30 inches (762
				  mm) and not more than 34 inches (864 mm).
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1012 - HANDRAILS › Subsection 1012.3 - Handrail graspability

Current through Register 1525, July 5, 2024
All required
handrails
shall comply with
				  Section 1012.3.1 or shall provide equivalent graspability.
Exception:
In Group R-3 occupancies; within
				  dwelling units in Group R-2 occupancies; and in Group U occupancies that are
				  accessory to a Group R-3 occupancy or accessory to individual dwelling units in
				  Group R-2 occupancies; handrails shall be Type I in accordance with Section
				  1012.3.1, Type II in accordance with Section 1012.3.2 or shall provide
				  equivalent graspability.
1012.3.1
Type I.
Handrails
with a circular cross section
				shall have an outside diameter of at least
				11/4 inches (32 mm) and not
				greater than 2 inches (51 mm). If the
handrail
is not
				circular, it shall have a perimeter dimension of at least 4 inches (102 mm) and
				not greater than 61/4 inches
				(160 mm) with a maximum cross-section dimension of
				21/4 inches (57 mm). Edges
				shall have a minimum radius of 0.01 inch (0.25 mm).
1012.3.2
Type II.
Handrails
with a perimeter greater than
				61/4 inches (160 mm) shall
				provide a graspable finger recess area on both sides of the profile. The finger
				recess shall begin within a distance of
				3/4 inch (19 mm) measured
				vertically from the tallest portion of the profile and achieve a depth of at
				least 5/16 inch (8 mm) within
				7/8 inch (22 mm) below the
				widest portion of the profile. This required depth shall continue for at least
				3/8 inch (10 mm) to a level
				that is not less than 13/4
				inches (45 mm) below the tallest portion of the profile. The minimum width of
				the
handrail
above the recess shall be
				11/4 inches (32 mm) to a
				maximum of 23/4 inches (70
				mm). Edges shall have a minimum radius of 0.01 inch (0.25 mm).
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1012 - HANDRAILS › Subsection 1012.4 - Continuity

Current through Register 1525, July 5, 2024
Handrail
gripping surfaces shall be
				  continuous, without interruption by newel posts or other obstructions.
Exceptions:
1.
Handrails
within dwelling
				units are permitted to be interrupted by a newel post at a turn or
				landing.
2. Within a dwelling unit,
				the use of a volute, turnout, starting easing or starting newel is allowed over
				the lowest tread.
3.
Handrail
brackets or balusters attached to the bottom surface
				of the
handrail
that do not project horizontally beyond the
				sides of the
handrail
within
				11/2 inches (38 mm) of the
				bottom of the
handrail
shall not be considered obstructions.
				For each 1/2 inch (12.7 mm)
				of additional
handrail
perimeter dimension above 4 inches (102
				mm), the vertical clearance dimension of
				11/2 inches (38 mm) shall be
				permitted to be reduced by
				1/8 inch (3 mm).
4. Where
handrails
are
				provided along walking surfaces with slopes not steeper than 1:20, the bottoms
				of the
handrail
gripping surfaces shall be permitted to be
				obstructed along their entire length where they are integral to crash rails or
				bumper guards.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1012 - HANDRAILS › Subsection 1012.6 - Handrail extensions

Current through Register 1525, July 5, 2024
Handrails
shall return to a wall,
guard
or the walking surface or shall be continuous to the
				  handrail of an adjacent
stair
flight
or ramp
				  run. Where
handrails
are not continuous between
flights,
the
handrails
shall extend
				  horizontally at least 12 inches (305 mm) beyond the top riser and continue to
				  slope for the depth of one tread beyond the bottom riser. At
ramps
where
handrails
are not continuous
				  between runs, the
handrails
shall extend horizontally above
				  the landing 12 inches (305 mm) minimum beyond the top and bottom of
ramp
runs. The extensions of
handrails
shall
				  be in the same direction of the
stair
flights
at
stairways
and the
ramp
runs at
ramps
.
Exceptions:
1.
Handrails
within a
				dwelling unit that is not required to be
accessible
need
				extend only from the top riser to the bottom riser.
2.
Aisle handrails
in Group
				A and E occupancies in accordance with Section 1028.13.
3.
Handrails
for
alternating tread devices
and ship ladders are permitted to
				terminate at a location vertically above the top and bottom risers. Handrails
				for
alternating tread devices
and ship ladders are not
				required to be continuous between
flights
or to extend beyond
				the top or bottom risers.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1012 - HANDRAILS › Subsection 1012.7 - Clearance

Current through Register 1525, July 5, 2024
Clear space between a
handrail
and a wall
				  or other surface shall be a minimum of
				  11/2 inches (38 mm). A
handrail
and a wall or other surface adjacent to the
handrail
shall be free of any sharp or abrasive
				  elements.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1012 - HANDRAILS › Subsection 1012.8 - Projections

Current through Register 1525, July 5, 2024
On ramps, the clear width between
handrails
shall be 36 inches (914 mm) minimum. Projections into the required width of
stairways
and
ramps
at each
handrail
shall not exceed
				  41/2 inches (114 mm) at or
				  below the
handrail
height. Projections into the required width
				  shall not be limited above the minimum headroom height required in Section
				  1009.2.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1012 - HANDRAILS › Subsection 1012.9 - Intermediate handrails

Current through Register 1525, July 5, 2024
Stairways
shall have intermediate
handrails
located in such a manner that all portions of the
stairway
width required for egress capacity are within 30
				  inches (762 mm) of a
handrail
. On monumental
stairs
,
handrails
shall be located along the
				  most direct path of egress travel.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1013 - GUARDS › Subsection 1013.1 - Where required

Current through Register 1525, July 5, 2024
Guards
shall be located along open-sided
				  walking surfaces, including
mezzanines
,
equipment
				  platforms
,
stairs
,
ramps
and
				  landings that are located more than 30 inches (762 mm) measured vertically to
				  the floor or grade below at any point within 36 inches (914 mm) horizontally to
				  the edge of the open side.
Guards
shall be adequate in
				  strength and attachment in accordance with Section 1607.7.
Exception:
Guards
are not
				  required for the following locations:
1. On the loading side of loading docks or
				piers.
2. On the audience side of
				stages and raised platforms, including steps leading up to the stage and raised
				platforms.
3. On raised stage and
				platform floor areas, such as runways, ramps and side stages used for
				entertainment or presentations.
4.
				At vertical openings in the performance area of stages and platforms.
5. At elevated walking surfaces appurtenant
				to stages and platforms for access to and utilization of special lighting or
				equipment.
6. Along vehicle service
				pits not accessible to the public.
7. In assembly seating where
guards
in accordance with Section 1028.14 are permitted and
				provided.
1013.1.1
Glazing.
Where
				glass is used to provide a
guard
or as a portion of the
guard
system, the
guard
shall also comply
				with Section 2407. Where the glazing provided does not meet the strength and
				attachment requirements of Section 1607.7, complying
guards
shall also be located along glazed sides of open-sided walking
				surfaces.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1013 - GUARDS › Subsection 1013.2 - Height

Current through Register 1525, July 5, 2024
Required
guards
shall be not less than 42
				  inches (1067 mm) high, measured vertically above the adjacent walking surfaces,
				  adjacent fixed seating or the line connecting the leading edges of the
				  treads.
Exceptions:
1. For occupancies in Group R-3, and within
				individual dwelling units in occupancies in Group R-2,
guards
on the open sides of
stairs
shall have a height not less than
				34 inches (864 mm) measured vertically from a line connecting the leading edges
				of the treads.
2. For occupancies
				in Group R-3, and within individual dwelling units in occupancies in Group R-2,
				where the top of the
guard
also serves as a
handrail
on the open sides of
stairs
, the top
				of the
guard
shall not be less than 34 inches (864 mm) and not
				more than 38 inches (965 mm) measured vertically from a line connecting the
				leading edges of the treads.
3. The
				height in assembly seating areas shall be in accordance with Section
				1028.14.
4. Along
alternating tread devices
and ship ladders,
guards
whose top rail also serves as a
handrail
, shall have height not less than 30 inches (762 mm)
				and not more than 34 inches (864 mm), measured vertically from the leading edge
				of the device tread
nosing
.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1013 - GUARDS › Subsection 1013.3 - Opening limitations

Current through Register 1525, July 5, 2024
Required
guards
shall not have openings
				  which allow passage of a sphere 4 inches (102 mm) in diameter from the walking
				  surface to the required
guard
height.
Exceptions:
1. From a height of 36 inches (914 mm) to 42
				inches (1067 mm),
guards
shall not have openings which allow
				passage of a sphere 43/8
				inches (111 mm) in diameter.
2. The
				triangular openings at the open sides of a
stair
, formed by
				the riser, tread and bottom rail shall not allow passage of a sphere 6 inches
				(152 mm) in diameter.
3. At
				elevated walking surfaces for access to and use of electrical, mechanical or
				plumbing systems or equipment,
guards
shall not have openings
				which allow passage of a sphere 21 inches (533 mm) in diameter.
4. In areas that are not open to the public
				within occupancies in Group I-3, F, H or S, and for
alternating tread
				devices
and ship ladders,
guards
shall not have
				openings which allow passage of a sphere 21 inches (533 mm) in
				diameter.
5. In assembly seating
				areas,
guards
at the end of
aisles
where they
				terminate at a fascia of boxes, balconies and galleries shall not have openings
				which allow passage of a sphere 4 inches in diameter (102 mm) up to a height of
				26 inches (660 mm). From a height of 26 inches to 42 inches (660 mm to 1067 mm)
				above the adjacent walking surfaces,
guards
shall not have
				openings which allow passage of a sphere 8 inches (203 mm) in
				diameter.
6. Within individual
				dwelling units and sleeping units in Group R-2 and R-3 occupancies,
guards
on the open sides of
stairs
shall not
				have openings which allow passage of a sphere
				43/8 inches (111 mm) in
				diameter.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1013 - GUARDS › Subsection 1013.4 - Screen porches

Current through Register 1525, July 5, 2024
Porches and decks which are enclosed with insect screening
				  shall be provided with
guards
where the walking surface is
				  located more than 30 inches (762 mm) above the floor or grade
				  below.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1013 - GUARDS › Subsection 1013.5 - Mechanical equipment

Current through Register 1525, July 5, 2024
Guards
shall be provided where appliances,
				  equipment, fans, roof hatch openings or other components that require service
				  are located within 10 feet (3048 mm) of a roof edge or open side of a walking
				  surface and such edge or open side is located more than 30 inches (762 mm)
				  above the floor, roof or grade below. The
guard
shall be
				  constructed so as to prevent the passage of a sphere 21 inches (533 mm) in
				  diameter. The
guard
shall extend not less than 30 inches (762
				  mm) beyond each end of such appliance, equipment, fan or
				  component.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1013 - GUARDS › Subsection 1013.6 - Roof access

Current through Register 1525, July 5, 2024
Guards
shall be provided where the roof
				  hatch opening is located within 10 feet (3048 mm) of a roof edge or open side
				  of a walking surface and such edge or open side is located more than 30 inches
				  (762 mm) above the floor, roof or grade below. The
guard
shall
				  be constructed so as to prevent the passage of a sphere 21 inches (533 mm) in
				  diameter.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1014 - EXIT ACCESS › Subsection 1014.1 - General

Current through Register 1525, July 5, 2024
The
exit access
shall comply with the
				  applicable provisions of Sections 1003 through 1013.
Exit
				  access
arrangement shall comply with Sections 1014 through
				  1019.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1014 - EXIT ACCESS › Subsection 1014.3 - Common path of egress travel

Current through Register 1525, July 5, 2024
In occupancies other than Groups H-1, H-2 and H-3, the
common path of egress travel
shall not exceed 75 feet (22 860
				  mm). In Group H-1, H-2 and H-3 occupancies, the
common path of egress
				  travel
shall not exceed 25 feet (7620 mm). For
common path of
				  egress travel
in Group A occupancies and assembly occupancies
				  accessory to Group E occupancies having fixed seating, see Section
				  1028.8.
Exceptions:
1. The length of a
common path of
				egress travel
in Group B, F and S occupancies shall not be more than
				100 feet (30 480 mm), provided that the building is equipped throughout with an
automatic sprinkler system
installed in accordance with
				Section 903.3.1.1.
2. Where a
				tenant space in Group B, S and U occupancies has an
occupant
				load
of not more than 30, the length of a
common path of
				egress travel
shall not be more than 100 feet (30 480 mm).
3. The length of a
common path of
				egress travel
in a Group I-3 occupancy shall not be more than 100 feet
				(30 480 mm).
4. The length of a
				common path of egress travel in a Group R-2 occupancy shall not be more than
				125 feet (38 100 mm), provided that the building is protected throughout with
				an
approved automatic sprinkler system
in accordance with
				Section 903.3.1.1 or 903.3.1.2.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1015 - EXIT AND EXIT ACCESS DOORWAYS › Subsection 1015.1 - Exits or exit access doorways from spaces

Current through Register 1525, July 5, 2024
Two
exits
or
exit access
				  doorways
from any space shall be provided where one of the following
				  conditions exists:
Exception:
Group I-2 occupancies shall comply
				  with Section 1014.2.2 through 1014.2.7.
1. The
occupant load
of the
				space exceeds one of the values in Table 1015.1.
Exception:
In Group R-2 and R-3 occupancies, one
means of egress
is permitted within and from individual
				  dwelling units with a maximum
occupant load
of 20 where the
				  dwelling unit is equipped throughout with an
automatic sprinkler
				  system
in accordance with Section 903.3.1.1 or 903.3.1.2.
2. The
common path of
				egress travel
exceeds one of the limitations of Section
				1014.3.
3. Where required by
				Section 1015.3, 1015.4, 1015.5, 1015.6 or 1015.6.1.
Where a building contains mixed occupancies, each individual
				  occupancy shall comply with the applicable requirements for that occupancy.
				  Where applicable, cumulative
occupant loads
from adjacent
				  occupancies shall be considered in accordance with the provisions of Section
				  1004.1.
TABLE 1015.1 SPACES WITH ONE EXIT OR EXIT ACCESS
				  DOORWAY
OCCUPANCY
MAXIMUM OCCUPANT LOAD
A, B, Ea, F, M, U
49
H-1, H-2, H-3
3
H-4, H-5, I-1, I-3, I-4, R
10
S
29
a. Day care maximum occupant load is 10.
1015.1.1
Three or more exits or exit access doorways.
Three
exits
or
exit access doorways
shall be
				provided from any space with an
occupant load
of 501 to 1,000.
				Four
exits
or
exit access doorways
shall be
				provided from any space with an
occupant load
greater than
				1,000.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1015 - EXIT AND EXIT ACCESS DOORWAYS › Subsection 1015.2 - Exit or exit access doorway arrangement

Current through Register 1525, July 5, 2024
Required
exits
shall be located in a manner
				  that makes their availability obvious.
Exits
shall be
				  unobstructed at all times.
Exit
and
exit access
				  doorways
shall be arranged in accordance with Sections 1015.2.1 and
				  1015.2.2.
1015.2.1
Two exits or
				exit access doorways.
Where two
exits
or
exit
				access doorways
are required from any portion of the
exit
access
, the
exit
doors
				or
exit access doorways
shall be placed a distance apart equal
				to not less than one-half of the length of the maximum overall diagonal
				dimension of the building or area to be served measured in a straight line
				between
exit
doors or
exit access doorways
.
				Interlocking or
scissor stairs
shall be counted as one
exit
stairway
.
Exceptions:
1. Where
exit enclosures
are
				provided as a portion of the required
exit
and are
				interconnected by a 1-hour fire-resistance-rated
corridor
conforming to the requirements of Section 1018, the required
exit
separation shall be measured along the shortest direct
				line of travel within the
corridor
.
2. Where a building is equipped throughout
				with an
automatic sprinkler system
in accordance with Section
				903.3.1.1 or 903.3.1.2, the separation distance of the
exit
doors or
exit access doorways
shall not be less than one-third
				of the length of the maximum overall diagonal dimension of the area
				served.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1015 - EXIT AND EXIT ACCESS DOORWAYS › Subsection 1015.3 - Boiler, incinerator and furnace rooms

Current through Register 1525, July 5, 2024
Two
exit access doorways
are required in
				  boiler, incinerator and furnace rooms where the area is over 500 square feet
				  (46 m2) and any fuel-fired equipment exceeds 400,000
				  British thermal units (Btu) (422 000 KJ) input capacity. Where two
exit
				  access doorways
are required, one is permitted to be a fixed ladder or
				  an
alternating tread device
.
Exit access
				  doorways
shall be separated by a horizontal distance equal to one-half
				  the length of the maximum overall diagonal dimension of the
				  room.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1015 - EXIT AND EXIT ACCESS DOORWAYS › Subsection 1015.4 - Refrigeration machinery rooms

Current through Register 1525, July 5, 2024
Machinery rooms larger than 1,000 square feet (93
				  m2) shall have not less than two
exits
or
exit
access
doors.
				  Where two
exit access doorways
are required, one such doorway
				  is permitted to be served by a fixed ladder or an
alternating tread
				  device
.
Exit access doorways
shall be separated by a
				  horizontal distance equal to one-half the maximum horizontal dimension of
				  room.
All portions of machinery rooms shall be within 150 feet (45
				  720 mm) of an
exit
or
exit access doorway
. An
				  increase in travel distance is permitted in accordance with Section
				  1016.1.
Doors shall swing in the direction of egress travel,
				  regardless of the
occupant load
served. Doors shall be tight
				  fitting and self-closing.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1015 - EXIT AND EXIT ACCESS DOORWAYS › Subsection 1015.5 - Refrigerated rooms or spaces

Current through Register 1525, July 5, 2024
Rooms or spaces having a floor area larger than 1,000 square
				  feet (93 m2), containing a refrigerant evaporator
				  and maintained at a temperature below 68°F (20°C), shall have access to
				  not less than two
exits
or
exit
access
doors.
Travel distance shall be determined as specified in Section
				  1016.1, but all portions of a refrigerated room or space shall be within 150
				  feet (45 720 mm) of an
exit
or
exit
access
door where such rooms are not protected by an
approved automatic sprinkler
system. Egress is allowed through
				  adjoining refrigerated rooms or spaces.
Exception:
Where using refrigerants in
				  quantities limited to the amounts based on the volume set forth in the
International Mechanical Code
.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1015 - EXIT AND EXIT ACCESS DOORWAYS › Subsection 1015.6 - Stage means of egress

Current through Register 1525, July 5, 2024
Where two
means of egress
are required,
				  based on the stage size or
occupant load
, one
means of
				  egress
shall be provided on each side of the stage.
1015.6.1
Gallery, gridiron and catwalk
				means of egress.
The
means of egress
from lighting and
				access catwalks, galleries and
gridirons
shall meet the
				requirements for occupancies in Group F-2.
Exceptions:
1. A minimum width of 22 inches (559 mm) is
				permitted for lighting and access catwalks.
2.
Spiral
stairs
are permitted in the
means of
				egress
.
3.
Stairways
required by this subsection need not be
				enclosed.
4.
Stairways
with a minimum width of 22 inches (559 mm), ladders
				or
spiral
stairs
are permitted in the
means of egress
.
5. A second
means of egress
is not required from these areas where a means of escape to a floor or to a
				roof is provided. Ladders,
alternating tread devices
or
spiral
stairs
are permitted in the means of
				escape.
6. Ladders are permitted in
				the
means of egress
.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1016 - EXIT ACCESS TRAVEL DISTANCE › Subsection 1016.2 - Exterior egress balcony increase

Current through Register 1525, July 5, 2024
Travel distances specified in Section 1016.1 shall be
				  increased up to an additional 100 feet (30 480 mm) provided the last portion of
				  the
exit
access
leading to the
exit
occurs on an exterior egress balcony constructed in
				  accordance with Section 1019. The length of such balcony shall not be less than
				  the amount of the increase taken.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1017 - AISLES › Subsection 1017.1 - General

Current through Register 1525, July 5, 2024
Aisles
serving as a portion of the
exit
access
in the
means of
				  egress
system shall comply with the requirements of this section.
Aisles
shall be provided from all occupied portions of the
exit
access
which contain seats, tables,
				  furnishings, displays and similar fixtures or equipment.
Aisles
serving assembly areas shall comply with Section 1028.
Aisles
serving reviewing stands,
grandstands
and
bleachers
shall also comply with Section 1028. The
				  required width of
aisles
shall be unobstructed.
Exception:
Doors complying with Section
				  1005.2.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1017 - AISLES › Subsection 1017.2 - Aisles in Groups B and M

Current through Register 1525, July 5, 2024
In Group B and M occupancies, the minimum clear
aisle
width shall be determined by Section 1005.1 for the
occupant load
served, but shall not be less than 36 inches
				  (914 mm).
Exception:
Nonpublic
aisles
serving less than 50 people and not required to be
accessible
by Chapter 11 need not exceed 28 inches (711 mm) in width.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1017 - AISLES › Subsection 1017.3 - Aisle accessways in Group M

Current through Register 1525, July 5, 2024
An
aisle accessway
shall be provided on at
				  least one side of each element within the
merchandise pad
. The
				  minimum clear width for an
aisle accessway
not required to be
accessible
shall be 30 inches (762 mm). The required clear
				  width of the
aisle accessway
shall be measured perpendicular
				  to the elements and merchandise within the
merchandise pad
.
				  The 30-inch (762 mm) minimum clear width shall be maintained to provide a path
				  to an adjacent
aisle
or
aisle accessway
. The
				  common path of travel shall not exceed 30 feet (9144 mm) from any point in the
merchandise pad
.
Exception:
For areas serving not more than 50
				  occupants, the common path of travel shall not exceed 75 feet (22 880
				  mm).
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1017 - AISLES › Subsection 1017.4 - Seating at tables

Current through Register 1525, July 5, 2024
Where seating is located at a table or counter and is
				  adjacent to an
aisle
or
aisle accessway
, the
				  measurement of required clear width of the
aisle
or
aisle accessway
shall be made to a line 19 inches (483 mm)
				  away from and parallel to the edge of the table or counter. The 19-inch (483
				  mm) distance shall be measured perpendicular to the side of the table or
				  counter. In the case of other side boundaries for
aisle
or
aisle accessways
, the clear width shall be measured to walls,
				  edges of seating and tread edges, except that
handrail
projections are permitted.
Exception:
Where tables or counters are served
				  by fixed seats, the width of the
aisle accessway
shall be
				  measured from the back of the seat.
1017.4.1
Aisle accessway for tables and
				seating.
Aisle accessways
serving arrangements of
				seating at tables or counters shall have sufficient clear width to conform to
				the capacity requirements of Section 1005.1 but shall not have less than the
				appropriate minimum clear width specified in Section 1017.4.2.
1017.4.2
Table and seating accessway
				width.
Aisle accessways
shall provide a minimum of 12
				inches (305 mm) of width plus
				1/2 inch (12.7 mm) of width
				for each additional 1 foot (305 mm), or fraction thereof, beyond 12 feet (3658
				mm) of
aisle accessway
length measured from the center of the
				seat farthest from an
aisle
.
Exception:
Portions of an
aisle
				  accessway
having a length not exceeding 6 feet (1829 mm) and used by a
				  total of not more than four persons.
1017.4.3
Table and seating aisle
				accessway length.
The length of travel along the
aisle
				accessway
shall not exceed 30 feet (9144 mm) from any seat to the
				point where a person has a choice of two or more paths of egress travel to
				separate
exits
.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1018 - CORRIDORS › Subsection 1018.1 - Construction

Current through Register 1525, July 5, 2024
Corridors
shall be fire-resistance rated in
				  accordance with Table 1018.1. The
corridor
walls required to
				  be fire-resistance rated shall comply with Section 709 for
fire
				  partitions
.
Exceptions:
1. A
fire-resistance rating
is not required for
corridors
in an occupancy in Group E where
				each room that is used for instruction has at least one door opening directly
				to the exterior and rooms for assembly purposes have at least one-half of the
				required
means of egress
doors opening directly to the
				exterior. Exterior doors specified in this exception are required to be at
				ground level.
2. A
fire-resistance rating
is not required for
corridors
contained within a dwelling or sleeping unit in an
				occupancy in Group R.
3. A
fire-resistance rating
is not required for
corridors
in
open parking garages
.
4. A
fire-resistance rating
is not required for
corridors
in an occupancy in Group B which
				is a space requiring only a single
means of egress
complying
				with Section 1015.1.
TABLE 1018.1 CORRIDOR FIRE-RESISTANCE
				  RATING
OCCUPANCY
OCCUPANT LOAD SERVED BY
							 CORRIDOR
REQUIRED FIRE-RESISTANCE RATING
							 (hours)
Without sprinkler system
With sprinkler
							 systemc
H-1, H-2, H-3
All
Not Permitted
1
H-4, H-5
Greater than 30
Not Permitted
1
A, B, E, F, M, S, U
Greater than 30
1
0
R
Greater than 10
Not Permitted
0.5
I-2a, I-4
All
Not Permitted
0
I-1, I-3
All
Not Permitted
1b
a.
For requirements for occupancies in Group I-2, see
							 Sections 407.2 and 407.3.
b.
For a reduction in the fire-resistance rating for
							 occupancies in Group I-3, see Section 408.8.
c.
Buildings equipped throughout with an automatic
							 sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2 where
							 allowed.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1018 - CORRIDORS › Subsection 1018.2 - Corridor width

Current through Register 1525, July 5, 2024
The minimum
corridor
width shall be as
				  determined in Section 1005.1, but not less than 44 inches (1118 mm).
Exceptions:
1. Twenty-four inches (610 mm)-For access to
				and utilization of electrical, mechanical or plumbing systems or
				equipment.
2. Thirty-six inches
				(914 mm)-With a required occupant capacity of less than 50.
3. Thirty-six inches (914 mm)-Within a
				dwelling unit.
4. Seventy-two
				inches (1829 mm)-In Group E with a
corridor
having a required
				capacity of 100 or more.
5.
				Seventy-two inches (1829 mm)-In
corridors
and areas serving
				gurney traffic in occupancies where patients receive outpatient medical care,
				which causes the patient to be not capable of self-preservation.
6. Ninety-six inches (2438 mm)-In Group I-2
				in areas where required for bed movement.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1018 - CORRIDORS › Subsection 1018.3 - Corridor obstruction

Current through Register 1525, July 5, 2024
The required width of
corridors
shall be
				  unobstructed.
Exception:
Doors complying with Section
				  1005.2.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1018 - CORRIDORS › Subsection 1018.4 - Dead ends

Current through Register 1525, July 5, 2024
Where more than one
exit
or
exit
				  access doorway
is required, the
exit
access
shall be arranged such that there are no dead ends in
corridors
more than 20 feet (6096 mm) in length.
Exceptions:
1. In occupancies in Group I-3 of Occupancy
				Condition 2, 3 or 4 (see Section 308.4), the dead end in a
corridor
shall not exceed 50 feet (15 240 mm).
2. In occupancies in Groups B, E, F, I-1, M,
				R-1, R-2, R-4, S and U, where the building is equipped throughout with an
automatic sprinkler system
in accordance with Section
				903.3.1.1, the length of the dead-end
corridors
shall not
				exceed 50 feet (15 240 mm).
3. A
				dead-end
corridor
shall not be limited in length where the
				length of the dead-end
corridor
is less than 2.5 times the
				least width of the dead-end
corridor
.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 10 - Means of Egress › Section 1018 - CORRIDORS › Subsection 1018.5 - Air movement in corridors

Current through Register 1525, July 5, 2024
Corridors
shall not serve as supply, return,
				  exhaust, relief or ventilation air ducts.
Exceptions:
1. Use of a
corridor
as a
				source of makeup air for exhaust systems in rooms that open directly onto such
corridors
, including toilet rooms, bathrooms, dressing rooms,
				smoking lounges and janitor closets, shall be permitted, provided that each
				such
corridor
is directly supplied with outdoor air at a rate
				greater than the rate of makeup air taken from the
corridor
.
2. Where
				located within a dwelling unit, the use of
corridors
for
				conveying return air shall not be prohibited.
3. Where located within tenant spaces of
				1,000 square feet (93 m2) or less in area,
				utilization of
corridors
for conveying return air is
				permitted.
4. Incidental air
				movement from pressurized rooms within health care facilities, provided that
				the
corridor
is not the primary source of supply or return to
				the room.
1018.5.1
Corridor
				ceiling.
Use of the space between the
corridor
ceiling
				and the floor or roof structure above as a return air plenum is permitted for
				one or more of the following conditions:
1.
				The
corridor
is not required to be of fire-resistance-rated
				construction;
2. The
corridor
is separated from the plenum by fire-resistance-rated
				construction;
3. The air-handling
				system serving the
corridor
is shut down upon activation of
				the air-handling unit
smoke detectors
required by the
International Mechanical Code
;
4. The air-handling system serving the
corridor
is shut down upon detection of sprinkler waterflow
				where the building is equipped throughout with an
automatic sprinkler
				system
; or
5. The space
				between the
corridor
ceiling and the floor or roof structure
				above the
corridor
is used as a component of an
approved
engineered smoke control system.