Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 11 - FIXED AND PORTABLE LADDERS › Section R. 408.41113 - General requirements

Current through Vol. 24-12, July 15, 2024
Rule 1113.
(1) A
					 ladder shall be provided at all personnel points of access if there is a break
					 in elevation of 19 inches (48 cm) or more and if a ramp, runway, sloped
					 embankment, stairway, or personnel hoist is not provided.
(2) When a building or structure has only 1
					 point of access between levels, that point of access shall be kept clear to
					 permit the free passage of employees. When work must be performed or equipment
					 must be used, that restricts the free passage of employees at the point of
					 access, an employer shall provide a second point of access and the access must
					 be used.
(3) When a building or
					 structure has 2 or more points of access between levels, the employer shall
					 ensure at least 1 point of access is kept clear to permit the free passage of
					 employees.
(4) Employers shall
					 provide and install all ladder fall protection systems that are required by
					 this part and shall comply with all other pertinent requirements of this part
					 before employees begin the work that necessitates the installation and use of
					 ladders and their respective fall protection systems.
(5) Ladder rungs, cleats, and steps shall be
					 parallel, level, and uniformly spaced when a ladder is in position for
					 use.
(6) Rungs, cleats, and steps
					 of portable ladders, except as provided in subrules (7) and (8) of this rule,
					 and fixed ladders shall be spaced not less than 10 inches (25 cm) apart and not
					 more than 14 inches (36 cm) apart, as measured between the center lines of the
					 rungs, cleats, and steps .
(7)
					 Rungs, cleats, and steps of step stools shall be not less than 8 inches (20 cm)
					 apart and not more than 12 inches (31 cm) apart, as measured between center
					 lines of the rungs, cleats, and steps.
(8) Rungs, cleats, and steps of the base
					 section of extension trestle ladders shall be not less than 8 inches (20 cm),
					 nor more than 18 inches (46 cm), apart, as measured between center lines of the
					 rungs, cleats, and steps. The rung spacing on the extension section of the
					 extension trestle ladder shall be not less than 6 inches (15 cm), nor more than
					 12 inches (31 cm), as measured between center lines of the rungs, cleats, and
					 steps.
(9) The minimum clear
					 distance between the sides of individual rung-type stepladders and the minimum
					 clear distance between the side rails of other fixed ladders shall be 16 inches
					 (41 cm).
(10) The minimum clear
					 distance between side rails for all portable ladders shall be 11 1/2 inches (29
					 cm).
(11) The rungs of individual
					 rung-type stepladders shall be shaped so that an employee's feet cannot slide
					 off the end of the rungs. See figure 1.
FIGURE 1
SUGGESTED DESIGN FOR RUNGS ON INDIVIDUAL RUNG
						LADDERS
Click Here To View
						Image
(12) The
					 rungs and steps of fixed metal ladders that are manufactured after January 14,
					 1991, shall be corrugated, knurled, dimpled, coated with skid-resistant
					 material, or otherwise treated to minimize slipping.
(13) The rungs of steps of portable metal
					 ladders shall be corrugated, knurled, dimpled, coated with skid-resistant
					 material, or otherwise treated to minimize slipping.
(14) Except when portable ladders are used to
					 gain access to fixed ladders, such as ladders on utility towers, billboards,
					 and other structures where the bottom of the fixed ladder is elevated to limit
					 access, when 2 or more separate ladders are used to reach an elevated work
					 area, the ladder shall be offset with a platform or landing between the
					 ladders.
(15) Ladder components
					 shall be surfaced in a manner that prevents employee injury due to punctures or
					 lacerations and prevents the snagging of clothing.