(1) You must meet
the requirements of this section as it applies to all portable ladders,
including job-made ladders for temporary use, unless otherwise
specified.
(2) You must meet the
standards for existing manufactured portable ladders as follows:
(a) Rungs of manufactured portable ladders
obtained before October 3, 1983, must be capable of supporting a two hundred
pound (890 N) load without deformation.
(b) Rungs must be evenly spaced from nine to
sixteen and one-half inches (22.9 to 41.9 cm), center to center.
(c) Rungs must be continuous members between
rails. Each rung of a double-rung ladder (two side rails and a center rail)
must extend the full width of the ladder.
(d) Width between side rails at the base of
the ladder must be at least twelve inches (30.48 cm) for ladders ten feet (3.05
m) or less in overall length, and must increase at least one-fourth inch (0.64
cm) for each additional two feet (0.61 m) of ladder length.
(3) You must make sure
manufactured portable ladders obtained after October 3, 1983, bear
identification indicating that they meet the appropriate ladder construction
requirements of the following standards:
(a)
ANSI A14.1-1990 Safety Requirements for Portable Wood Ladders
(b) ANSI A14.2-1990 Safety Requirements for
Portable Metal Ladders
(c) ANSI
A14.5-1992 Safety Requirements for Portable Reinforced Plastic
Ladders
(4) You must
meet these standards for job-made portable ladders :
(a) Have a minimum and uniform distance
between rungs of twelve inches (30.48 cm), center to center;
(b) Be capable of supporting a two hundred
fifty pound (1112 N) load without deformation; and
(c) Have a minimum width between side rails
of twelve inches (30.48 cm) for ladders ten feet (3.05 m) in height. Width
between rails must increase at least one-fourth inch (0.64 cm) for each
additional two feet (0.61 m) of ladder length.
(5) You must meet the following requirements
for maintenance and inspection:
(a) You must
maintain portable ladders in safe condition. Ladders with the following defects
must not be used and either must be tagged as unusable if kept on the premises
or must be removed from the worksite:
(i)
Broken, split or missing rungs, cleats, or steps;
(ii) Broken or split side rails;
(iii) Missing or loose bolts, rivets, or
fastenings;
(iv) Defective ropes;
or
(v) Any other structural
defect.
(b) Ladders must
be inspected for defects prior to each day's use, and after any occurrence,
such as a fall, which could damage the ladder.
(6) You must meet the following requirements
for ladder usage:
(a) Ladders made by
fastening rungs or devices across a single rail are prohibited.
(b) Ladders must not be used:
(i) As guys, braces, or skids; or
(ii) As platforms, runways, or
scaffolds.
(c) Metal and
wire-reinforced ladders with wooden side rails must not be used when employees
on the ladder might come into contact with energized electrical
conductors.
(d) Individual sections
from different multisectional ladders or two or more single straight ladders
must not be tied or fastened together to achieve additional length.
(e) Except for combination ladders,
self-supporting ladders must not be used as single straight ladders.
(f) Unless intended for cantilever operation,
nonself-supporting ladders must not be used to climb above the top support
point.
(g) Ladders must extend at
least thirty-six inches (0.91 m) above the upper support level if employees are
to leave or mount the ladder at that level, except that where such extension is
impractical other equivalent means such as grab bars may be used to provide a
hand grip.
(h) Ladders must be
securely positioned on a level and firm base.
(i) Ladders must be fitted with
slip-resistant bases and secured at top or bottom to prevent the ladder from
slipping.
(j) Ladders must be
placed so that employees climbing are not exposed to injury from projecting
objects or doors that open toward the ladder.