Mich. Admin. Code R. 408.41104 - Definitions; J to R

Rule 1104.

(1) "Job-built ladder" means a ladder, other than a manufactured ladder, that is usually built at the jobsite .

(2) "Ladder" means an appliance that usually consists of 2 side rails which are joined at regular intervals by crosspieces which are called steps, rungs, or cleats and on which a person may step to ascend or descend .

(3) "Ladder safety device" means a device, other than a cage or well, that is designed to eliminate or reduce the possibility of accidental falls .

(4) "Lower levels" means those levels to which an employee can fall from a ladder. Such areas include ground levels, floors, ramps, runways, excavations, pits, water, and similar surfaces. The term does not include the surface from which the employee falls .

(5) "Manufactured ladder" means a commercially made ladder .

(6) "Maximum intended load" means the total load of all employees, equipment, tools, materials, transmitted loads, and other loads that are anticipated to be applied to a ladder compartment at any one time .

(7) "Pitch" means the included angle which is between the horizontal and the ladder and which is measured on the opposite side of the ladder from the climbing side .

(8) "Platform ladder" means a self-supporting type of fixed size stepladder that has a platform provided at the working level. The size is determined by the distance along the front rail from the platform to the base of the ladder .

(9) "Portable ladder" means a ladder which is not permanently fixed in place and which may be used at various locations .

(10) "Rail ladder" means a fixed ladder which consists of side rails that are joined at regular intervals by rungs or cleats and which is fastened along its entire length or in sections to a building, structure, or equipment .

(11) "Rungs" means a ladder's crosspieces of circular or oval cross section on which a person may step to ascend or descend .

Notes

Mich. Admin. Code R. 408.41104

1979 AC; 1993 AACS