29 Cfr 1926.250

Occupational Safety and Health Admin., Labor
Edition), which are incorporated by
reference in § 1926.200(g)(2).
(b) Crane and hoist signals. Regulations for crane and hoist signaling will
be found in applicable American National Standards Institute standards.
[44 FR 8577, Feb. 9, 1979; 44 FR 20940, Apr. 6,
1979, as amended at 67 FR 57736, Sept. 12,
2002]

§ 1926.202 Barricades.
Barricades for protection of employees shall conform to Part VI of the
Manual on Uniform Traffic Control Devices (1988 Edition, Revision 3 or Millennium Edition), which are incorporated by reference in § 1926.200(g)(2).
[67 FR 57736, Sept. 12, 2002]

§ 1926.203 Definitions applicable to
this subpart.
(a) Barricade means an obstruction to
deter the passage of persons or vehicles.
(b) Signs are the warnings of hazard,
temporarily or permanently affixed or
placed, at locations where hazards
exist.
(c) Signals are moving signs, provided
by workers, such as flaggers, or by devices, such as flashing lights, to warn
of possible or existing hazards.
(d) Tags are temporary signs, usually
attached to a piece of equipment or
part of a structure, to warn of existing
or immediate hazards.
[44 FR 8577, Feb. 9, 1979; 44 FR 20940, Apr. 6,
1979, as amended at 67 FR 57736, Sept. 12,
2002]

Subpart H—Materials Handling,
Storage, Use, and Disposal
AUTHORITY: Sec. 107, Contract Work Hours
and Safety Standards Act (Construction
Safety Act) (40 U.S.C. 333); Secs. 4, 6, 8, Occupational Safety and Health Act of 1970 (29
U.S.C. 653, 655, 657); Secretary of Labor’s
Order No. 12–71 (36 FR 8754), 8–76 (41 FR
25059), 9–83 (48 FR 35736), or 1–90 (50 FR 9033),
as applicable. Section 1926.250 also issued
under 29 CFR Part 1911.

§ 1926.250 General requirements for
storage.
(a) General. (1) All materials stored in
tiers shall be stacked, racked, blocked,
interlocked, or otherwise secured to
prevent sliding, falling or collapse.

§ 1926.250

(2) Maximum safe load limits of
floors within buildings and structures,
in pounds per square foot, shall be conspicuously posted in all storage areas,
except for floor or slab on grade. Maximum safe loads shall not be exceeded.
(3) Aisles and passageways shall be
kept clear to provide for the free and
safe movement of material handling
equipment or employees. Such areas
shall be kept in good repair.
(4) When a difference in road or working levels exist, means such as ramps,
blocking, or grading shall be used to
ensure the safe movement of vehicles
between the two levels.
(b) Material storage. (1) Material
stored inside buildings under construction shall not be placed within 6 feet of
any hoistway or inside floor openings,
nor within 10 feet of an exterior wall
which does not extend above the top of
the material stored.
(2) Each employee required to work
on stored material in silos, hoppers,
tanks, and similar storage areas shall
be equipped with personal fall arrest
equipment meeting the requirements
of subpart M of this part.
(3) Noncompatible materials shall be
segregated in storage.
(4) Bagged materials shall be stacked
by stepping back the layers and crosskeying the bags at least every 10 bags
high.
(5) Materials shall not be stored on
scaffolds or runways in excess of supplies needed for immediate operations.
(6) Brick stacks shall not be more
than 7 feet in height. When a loose
brick stack reaches a height of 4 feet,
it shall be tapered back 2 inches in
every foot of height above the 4-foot
level.
(7) When masonry blocks are stacked
higher than 6 feet, the stack shall be
tapered back one-half block per tier
above the 6-foot level.
(8) Lumber:
(i) Used lumber shall have all nails
withdrawn before stacking.
(ii) Lumber shall be stacked on level
and solidly supported sills.
(iii) Lumber shall be so stacked as to
be stable and self-supporting.
(iv) Lumber piles shall not exceed 20
feet in height provided that lumber to
be handled manually shall not be
stacked more than 16 feet high.

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§ 1926.251

29 CFR Ch. XVII (7–1–10 Edition)

(9) Structural steel, poles, pipe, bar
stock, and other cylindrical materials,
unless racked, shall be stacked and
blocked so as to prevent spreading or
tilting.
(c) Housekeeping. Storage areas shall
be kept free from accumulation of materials that constitute hazards from
tripping, fire, explosion, or pest harborage. Vegetation control will be exercised when necessary.
(d) Dockboards (bridge plates). (1) Portable and powered dockboards shall be
strong enough to carry the load imposed on them.
(2) Portable dockboards shall be secured in position, either by being anchored or equipped with devices which
will prevent their slipping.
(3) Handholds, or other effective
means, shall be provided on portable
dockboards to permit safe handling.
(4) Positive protection shall be provided to prevent railroad cars from
being moved while dockboards or
bridge plates are in position.
[44 FR 8577, Feb. 9, 1979; 44 FR 20940, Apr. 6,
1979, as amended at 49 FR 18295, Apr. 30, 1984;
54 FR 24334, June 7, 1989; 58 FR 35173, June 30,
1993; 59 FR 40729, Aug. 9, 1994; 61 FR 5510, Feb.
13, 1996]

§ 1926.251 Rigging equipment for material handling.
(a) General. (1) Rigging equipment for
material handling shall be inspected
prior to use on each shift and as necessary during its use to ensure that it
is safe. Defective rigging equipment
shall be removed from service.
(2) Rigging equipment shall not be
loaded in excess of its recommended
safe working load, as prescribed in Tables H–1 through H–20 in this subpart,
following § 1926.252(e) for the specific
equipment.
(3) Rigging equipment, when not in
use, shall be removed from the immediate work area so as not to present a
hazard to employees.
(4) Special custom design grabs,
hooks, clamps, or other lifting accessories, for such units as modular panels, prefabricated structures and similar materials, shall be marked to indicate the safe working loads and shall
be proof-tested prior to use to 125 percent of their rated load.

(5) Scope. This section applies to
slings used in conjunction with other
material handling equipment for the
movement of material by hoisting, in
employments covered by this part. The
types of slings covered are those made
from alloy steel chain, wire rope, metal
mesh, natural or synthetic fiber rope
(conventional three strand construction), and synthetic web (nylon, polyester, and polypropylene).
(6) Inspections. Each day before being
used, the sling and all fastenings and
attachments shall be inspected for
damage or defects by a competent person designated by the employer. Additional inspections shall be performed
during sling use, where service conditions warrant. Damaged or defective
slings shall be immediately removed
from service.
(b) Alloy steel chains. (1) Welded alloy
steel chain slings shall have permanently affixed durable identification
stating size, grade, rated capacity, and
sling manufacturer.
(2) Hooks, rings, oblong links, pearshaped links, welded or mechanical
coupling links, or other attachments,
when used with alloy steel chains, shall
have a rated capacity at least equal to
that of the chain.
(3) Job or shop hooks and links, or
makeshift fasteners, formed from
bolts, rods, etc., or other such attachments, shall not be used.
(4) Rated capacity (working load
limit) for alloy steel chain slings shall
conform to the values shown in Table
H–1.
(5) Whenever wear at any point of
any chain link exceeds that shown in
Table H–2, the assembly shall be removed from service.
(6) Inspections. (i) In addition to the
inspection required by other paragraphs of this section, a thorough periodic inspection of alloy steel chain
slings in use shall be made on a regular
basis, to be determined on the basis of
(A) frequency of sling use; (B) severity
of service conditions; (C) nature of lifts
being made; and (D) experience gained
on the service life of slings used in
similar circumstances. Such inspections shall in no event be at intervals
greater than once every 12 months.
(ii) The employer shall make and
maintain a record of the most recent

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